化学专业英语翻译4

化学及化工专业词汇英语翻译(P-Z)package 包装packed absorption tower 填充吸收塔packed column 填充塔packed dyeing 填充染色packed reaction column 填充反应塔packed rectification tower 填充精馏塔packed tower 填充塔packing 填充物packing density 填充密度packing paper 包装纸padding 表面染色paddle agitator 桨式混合机paddle mixer 桨式混合机paint 涂料paint hardner 镀金粘料paint remover 油漆去除剂paint stripper 油漆去除剂pair annihilation 对湮没pair creation 正负电子对产生pair ion 离子对pale crepe 苍铍胶palladium 钯palladium asbestos 钯石棉palladium black 钯黑palladium chloride 氯化钯palladium nitrate 硝酸钯palladium oxide 氧化钯palladium sponge 海绵钯palm kernel oil 棕榈仁油palm oil 棕榈油palmarosa oil 掌玫油palmitate 棕榈酸盐palmitic acid 棕榈酸palmitin 棕榈精palmitone 棕榈酮pan mill 碾磨盘panchromatic film 全色胶片panchromatic plate 全色干片pancreatin 胰酶pancreozymin 肠促胰酶素pangamic acid 潘氨酸pantothenic acid 泛酸papain 木瓜酶papaverine 罂粟碱paper chromatography 纸色谱分析法paper electrophoresis 纸电泳paper filter 纸滤器paper industry 造纸工业paper machine 造纸机paper pulp 纸浆paper stencilling 刻花纸paper yarn 纸绳para aminohippuric acid 对氨基马尿酸para hydrogen 仲氢para isomer 对位异构体para molecule 仲分子para position 对位para red 对位红para rubber 三叶橡胶paraaldehyde 仲醛parabanic acid 仲班酸parabola 抛物线paracasein 副酪朊parachor 等张比容paraconic acid 仲康酸paracyanogen 仲氰paraffin 石蜡paraffin base crude 石蜡基原油paraffin hydrocarbon 烷属烃paraffin oil 石蜡油paraffin stock 石蜡原油paraffin wax 石蜡paraformaldehyde 仲甲醛parafuchsine 副品红paragenesis 共生paragonite 钠云母paraldol 仲醛醇parallel flow 并流平行流parallel reaction 平行反应paralysis 麻痹paralyzer 麻痹药paramagnetic resonance 顺磁共振paramagnetic substance 顺磁质paramagnetism 顺磁性parameter 参数paramine 对胺paramorphism 同质异晶paranitroaniline red 对位红pararosaniline 副蔷薇胺parastrophe 对位取代化合物parathion 硝苯硫磷酯paraxanthine 副黄嘌呤paraxylene 对二甲苯parchment 羊皮纸parchment paper 仿羊皮纸parent name 母体名parent substance 母体parinol 苯吡醇paris green 巴黎绿paris white 巴黎胡粉白parity 奇偶性parkerizing 磷化处理parpon 帕尔庞partial combustion 部分燃烧partial condensation 部分冷凝partial condenser 分馏柱partial molar quantity 偏摩尔数量partial molar volume 偏摩尔体积partial pressure 分压partial reaction 部分反应partial valence 余价participation of neighboring group 邻基参与particle 粒子particle counting 粒子计数法particle diameter 颗粒直径particle electrophoresis 粒子电泳particle induced x ray emission 粒子诱导 x 射线发射particle scattering factor 粒子散射因数particle size 粒度particle size analysis 粒径分析particle thickness technique 质点厚度测量技术parting 分离parting agent 分离剂partition 配分partition chromatography 配分色层法partition coefficient 配分系数partition function 配分函数partition wall 隔墙passivation 钝化酌passivation potential 钝化电势passive state 钝态passivity 钝态paste 糊剂paste mixer 惮机paste paint 厚漆paste resin 糊状尸pasteboard 纸板pasted plate 涂浆的板pasteurization 巴氏杀菌pasteurizer 巴氏灭菌器pasting 糊化patchouli oil 绿叶油patent 专利pattern 图样pattern recognition 模式辫认peak 峰值peak inverse voltage 最大反向电压peak load 峰值负荷peak potential 顶点电位peanut oil 花生油pearl 珍珠pearl ash 珍珠灰pearl essence 珍珠粉pearl polymerization 成珠聚合pearl white 锌钡白pearlite 珍珠岩peat 泥炭peat tar 泥煤焦油pebble mill 砾磨机pectic acid 果胶酸pectic substances 果胶质pectin 果胶pectinase 果胶酶pectization 凝结pectocellulose 果胶纤维素peeling 剥落peep hole 窥孔pegmatite 伟晶岩pelargonaldehyde 壬醛pelargonic acid 正壬酸pelargonidin 花葵素pellet 粒状pellet cooler 颗粒冷却器pelletizer 造粒机pellotine 佩落碱pendulum mill 摆旋式研磨机penetrability 穿透性penetrant 渗透剂penetrating agent 渗透剂penetration 穿透;渗入度penetration complex 透入配合物penetration test 贯入度试验penetrator 针入度计penetrometer 透度计penicillase 青霉素酶penicillin 青霉素pentacarbonyl iron 五羰基铁pentacene 并五苯pentachlorophenol 五氯酚pentadiene 戊二烯pentaerythritol 季戊四醇pentaerythritol tetranitrate 季戊四醇四硝酸酯pentamethylene 环戊烷pentamethylenediamine 戊甲撑二胺pentane 戊烷pentane thermometer 戊烷温度计pentanol 戊醇pentasol 成氯醇pentene 戊烯penthrit 季戊四醇四硝酸酯pentlandite 镍黄铁矿pentobarbital 戊巴比妥pentosan 多缩戊糖pentose 戊糖pentose phosphate cycle 戊糖磷酸循环pentose phosphate pathway 戊糖磷酸途径pentyl alcohol 戊醇pentyne 戊炔peppermint 薄荷peppermint oil 薄荷油pepsin 胃蛋白酶pepsinogen 胃蛋白酶原peptidase 肽酶peptide 肽peptide bond 肽键peptide linkage 肽键peptide synthetase 肽合成酶peptidoglycan 肽聚糖peptization 胶溶酌peptized fuel 胶溶燃料peptizer 胶溶剂peptizing agent 胶溶剂peptone 胨peracetic acid 过乙酸peracid 过酸peralcohol 过醇perbenzoic acid 过苯酸perborate 过硼酸盐perboric acid 过硼酸perbromate 过溴酸盐perbromic acid 过溴酸percarbonate 过碳酸盐percent grafting 接枝率perchlorate 高氯酸盐perchloric acid 高氯酸perchloride 高氯化物perchloroethane 六氯乙烷percolation 沥滤percolator 渗滤器percussion cap 雷管percussion powder 雷管火药perfect analysis 完全分析perfect black body 完全黑体perfect combustion 完全燃烧perfect crystal 完整晶体perfect elasticity 完全弹性perfect fluid 理想铃perfect gas 完美气体perfect mixing 完全混合perfect solution 完美溶液perfluorocyclobutane 过氟化环丁烷perforated pipe distributor 喷淋器多孔管分布器perforated plate 多孔板perforated plate distillation 多孔板蒸馏perforated plate tower 孔板塔performance testing 性能试验performic acid 过甲酸perfume 香料perfume extracting solvent 香料抽出溶剂perfume industry 香料工业perhydride 过氢化物perhydrol 强双氧水periclase 方镁石perilla oil 紫苏子油period 周期periodate 高碘酸盐periodic acid 高碘酸periodic law 周期律periodic precipitation 间歇沉淀periodic reaction 周期反应periodic system of elements 元素周期系periodic table 周期表periodide 高碘化物periphery 边界periplogenin 杠柳甙元perissad 奇价元素peritectic 包晶peritectic point 包晶点perkin reaction 佩金反应permanence 持久性permanent current 持恒电流permanent dipole 永久偶极子permanent expansion 永久膨胀permanent gas 永久气体permanent hardness 永久硬度permanent magnet 永磁铁permanent set 永久变形permanganate 高锰酸盐permanganate bleaching 高锰酸盐漂白permanganate titration 高锰酸盐滴定法permanganic acid 高锰酸permanganometry 高锰酸盐滴定法permeability 渗透性permeable membrane 可透膜permeameter 渗透计permeametry 渗透测定法permeation 渗透permissible error 容许误差permissible explosive 安全炸药permitted explosive 安全炸药permselective membrane 选择性渗透膜permselectivity 选择渗透性permutation 置换permutite 人造沸石perovskite 钙钛矿peroxidase 过氧物酶peroxide 过氧化peroxide effect 过氧化物效应peroxide index 过氧化值peroxide number 过氧化值peroxo acid 过氧基酸peroxy acid 过酸peroxydisulfuric acid 过硫酸perpetual motion 永久运动perphenazine 佩吩嗪perrhenate 高铼酸盐perrhenic acid 高铼酸perruthenate 过钌酸盐persalt 过酸盐persian red 铬红persistent current 持恒电流personal error 人为误差persorption 吸混酌persulfate 过硫酸盐persulfide 过硫化物persulfuric acid 过硫酸peru balsam 秘鲁香脂pesticide 杀虫剂pestle 杵棒pethidine 哌替啶pethidine hydrochloride 盐酸哌替啶petri dish 陪替氏培养皿petrochemical industry 石油化学工业petrochemical reaction 石油化学反应petrochemicals 石油化学产品petrochemistry 石油化学petrolatum 矿脂petroleum 石油petroleum acid 石油酸petroleum asphalt 石油沥青petroleum benzine 石油醚petroleum chemicals 石油化学产品petroleum chemistry 石油化学petroleum coke 石油焦炭petroleum distillation 石油蒸馏petroleum emulsion 石油乳剂petroleum ether 石油醚petroleum gas 石油气体petroleum grease 石油润滑脂petroleum industry 石油工业petroleum isomerization process 石油异构化过程petroleum jelly 矿脂petroleum pitch 石油沥青petroleum pitch coke 石油沥青焦炭petroleum product 石油产品petroleum refinery 石油加工厂petroleum refining 石油提炼petroleum refining industry 石油炼制工业petroleum resin 石油尸petroleum wax 石油蜡ph 氢指数ph electrode ph 电极ph indicator ph 指示剂ph meter ph 计ph standard solution ph 标准溶液ph test paper ph 试验纸ph value ph 值phanerocrystalline 显晶质pharmaceutical chemistry 药物化学pharmaceutics 制药学pharmacology 药理学pharmacy 药学phase 相phase average 相平均phase boundary 相界phase boundary potential 相界电位phase change 相转移phase contrast microscope 相差显微镜phase diagram 相图phase equilibrium 相平衡phase modulation 相位灯phase rule 相律phase sensitive detection 相敏检波phase separation 相分离phase shifter 移相器phase solubility 相溶解度phase solubility analysis 相溶度分析phase space 相空间phase titration 相滴定phase trajectory 相位轨道phase transfer catalyst 相转移催化剂phase transition 相转移phellandren 菲兰烯phenacetin 非那巍phenacite 硅铍石phenacyl alcohol 苯甲酰甲醇phenacyl bromide 苯甲酰甲基溴phenadon 非那酮phenamine 非那明phenanthrene 菲phenanthrenequinone 菲醌phenanthroline 二氮杂菲phenanthroline indicator 菲绕啉指示剂phenazine 吩嗪phenetidin 氨基苯乙醚phenetidine 氨基苯乙醚phenetole 苯乙醚phenobarbital 苯巴比妥phenocryst 斑晶phenol 酚phenol ether 苯酚醚phenol formaldehyde resin 苯酚甲醛尸phenol lignin 苯酚木素phenol red 酚红phenolase 酚酶phenolate 酚盐phenolic acid 酚酸phenolic resin 酚尸phenolic resin varnish 酚醛清漆phenolphthalein 酚酞phenolsulfonic acid 苯酚磺酸phenoplast 酚醛塑料phenosafranine 酚藏花红phenothiazine 吩噻嗪phenoxazine 吩恶phenoxide 酚盐phenoxyacetic acid 苯氧基乙酸phenyl acetate 醋酸苯酯phenyl ether 苯基醚phenyl isocyanate 异氰酸苯酯phenyl salicylate 萨罗phenylacetaldehyde 苯乙醛phenylacetamide 苯乙酰胺phenylacrylic acid 苯基丙烯酸phenylalanine 苯丙氨酸phenylbutazone 苯基丁氮酮phenylcinchonic acid 辛可芬phenylene 苯撑phenylenediamine 撑二氨phenylethyl acetate 醋酸苯乙酯phenylethyl alcohol 苯基乙醇phenylethyl isobutyrate 异丁酸苯乙酯phenylethyl propionate 丙酸苯乙酯phenylethylacetic acid 苯乙基醋酸phenylhydrazine 苯肼phenylmagnesium bromide 溴化苯镁phenylmagnesium chloride 氯化苯镁phenylmagnesium halide 卤化苯镁phenylmagnesium iodide 碘化苯镁phenylmercuric acetate 核酸汞phenylmercuric chloride 氯化苯汞phenylmorpholine 苯替吗啉phenylphenol 苯基苯酚phenylpiperazine 苯基哌嗪pheromone 信息素phlogiston 燃素phlorizin 根皮甙phloroglucinol 根皮山梨醇phonochemistry 声化学phonon 声子phorone 佛尔酮phosgene 光气phosphamide 磷酰胺phosphamidon 磷酰胺酮phosphatase 磷酸酶phosphate 磷酸盐phosphate glass 磷酸盐玻璃phosphatic ferfilizer 磷肥phosphatidic acid 磷脂酸phosphatizing 磷酸盐处理phosphide 磷化物phosphine 磷化氢phosphite 亚磷酸盐phosphocreatine 磷酸肌酸phosphoenolpyruvate 磷酸烯醇丙酮酸phospholipid 磷脂phosphomolybdate 磷钼酸盐phosphomolybdic acid 磷钼酸phosphomonoesterase 磷酸单酯酶phosphoprotein 磷蛋白phosphor 磷光体phosphor bronze 磷青铜phosphor salt 磷盐phosphorescence 磷光phosphoretted hydrogen 磷化氢phosphoric acid 磷酸phosphoric acid anhydride 磷酐phosphorimetric analysis 磷光分析phosphorimetry 磷光分析phosphorite 磷钙土phosphoro organic insecticide 磷有机杀虫剂phosphorolysis 磷酸解phosphoroscope 磷光计phosphorous acid 亚磷酸phosphorous anhydride 亚磷酸酐phosphorus 磷phosphorus chloride 氯化磷phosphorus nitride 氮化磷phosphorus oxychloride 磷酰氯phosphorus pentabromide 五溴化磷phosphorus pentachloride 五氯化磷phosphorus pentasulfide 五硫化二磷phosphorus sesquisulfide 三硫化四磷phosphorus tribromide 三溴化磷phosphorus trichloride 三氯化磷phosphorus trifluoride 三氟化磷phosphorus triiodide 三碘化磷phosphoryl chloride 磷酰氯phosphorylase 磷酸化酶phosphotungstic acid 磷钨酸photobiochemistry 光生物化学photocatalysis 光催化酌photocell 光电池photochemical catalysis 光催化photochemical equilibrium 光化学平衡photochemical reaction 光化反应photochemistry 光化学photochromic reaction 彩色反应photochromism 光致变色现象photochromy 彩色照相术photoconductor 光电导体photocurrent 光电流photodetachment 光致分离photodimerization 光二聚酌photodissociation 光解酌photodosimetry 照相剂量学photoelasticity 光弹性photoelectric cell 光电池photoelectric color comparator 比色仪photoelectric colorimeter 光电比色计photoelectric colorimetry 光电比色法photoelectric effect 光电效应photoelectric fraction collector 光电分级收集器photoelectric pyrometer 光电高温计photoelectric spectrophotometer 光电分光光度计photoelectric tube 光电管photoelectrochemistry 光电化学photoelectron 光电子photoemission 光电发射photofission 光致裂变photogel 摄影煤photographic characteristic curve 照相特性曲线photographic chemistry 照相化学photographic contrast 照相对比度photographic densitometer 照相密度计photographic density 照相底片密度photographic developer 显象剂photographic development 照相显相photographic emulsion 照相乳胶photographic emulsion layer 感光层photographic film 胶片photographic material 照相材料photographic negative 照相底片photographic paper 印相纸photographic plate 照相底片photographic positive 照相正片photographic process 照相法photography 照相photogyration 照相底片photohomolysis 光同种溶解photoionization 光致电离photoisomer 光异构体photolithography 照相平版印刷photoluminescence 光致发光photolysis 光分解photomeson 光介子photometer 光度计photometric titration 光度滴定photon 光子photonuclear reaction 光致核反应photooxidation 光氧化photophoresis 光泳现象photophosphorylation 光磷酸化photopigment 光色素photopolymer 光聚合物photopolymerization 光聚合photoreactive chlorophyll 光反应性叶绿素photoreduction 光致还原photorespiration 光呼吸photosensitive glass 光敏玻璃photosensitive polymer 光敏聚合物photosensitive resin 感光尸photosensitivity 光敏性photostructural transformation 光结构转变photosynthesis 光合酌phototropy 光致变色现象phototube 光电管phthalaldehyde 酞醛phthalaldehydic acid 苯醛酸phthalamide 酞酰胺phthalate 邻苯二甲酸盐phthalazine 酞嗪phthalein 酞phthalein dye 酞类染料phthalic acid 酞酸phthalic anhydride 酞酐phthalide 苯酞phthalimide 酞亚胺phthalocyanine 酞菁phthalocyanine blue 酞菁蓝phthalonic acid 酞酮酸phthalonitrile 酞腈phthalyl chloride 酞酰氯phthalylsulfathiazole 邻苯二甲酰基磺胺噻唑phylloquinone 叶绿醌physical adsorption 物理吸附physical chemistry 物理化学physical chemistry of high polymer 高聚物物理化学physical development 物理显影physical property 物理性质physical ripening 物理成熟physico chemical analysis 物理化学分析法physiological acidic fertilizer 生理酸性肥料physiological chemistry 生理化学physiological salt solution 生理盐溶液physiological solution 生理溶液physisorption 物理吸附physostigmine 毒扁豆碱phytase 植酸酶phytic acid 肌醇六磷酸phytin 非汀phytochemistry 植物化学phytochrome 光敏素phytol 植醇phytosterol 植物甾醇phytotoxin 植物毒素picene 二萘品苯picoline 皮考啉picolinic acid 皮考啉酸picral 苦醛腐蚀溶液picramic acid 苦氨酸picrate 苦味酸盐picric acid 苦味酸picrolonate 苦酮酸盐picrolonic acid 苦酮酸picrotoxin 苦毒piezochemistry 高压化学piezoelectric effect 压电效应piezoelectric vibrator 压电振子piezoelectricity 压电piezometer 压力计pig iron 生铁pigment 颜料pigmentation 着色pilocarpine 匹鲁卡品pilot cell 领示电池pilot ion 领示离子pilot plant 中间工厂pimaric acid 海松酸pimaricin 匹马菌素pimelic acid 庚二酸pimple 小突起pinacol 频哪醇pinacolin 特己酮pinacolin rearrangement 邻二叔醇重排酌pinacone 频哪醇pinane 蒎烷pincette 小钳子pinch cock 弹簧夹pinch effect 夹紧效应pine oil 松释pine resin 松脂pine tar oil 松焦油pinene 蒎烯pinic acid 蒎酸pink salt 锡盐pinoline 松香烃pipe furnace 管式炉pipe line 管路pipe still 管式蒸馏装置pipecoline 哌可啉piperazine 哌嗪piperic acid 胡椒酸piperidine 氮己烷piperine 胡椒碱piperonal 胡椒醛piperonylic acid 胡椒基酸piperylene 戊间二稀pipet 吸移管pipet support 吸移管架pisang wax 香蕉蜡pisanite 铜绿矾piston compressor 活塞压缩机piston pump 活塞泵pitch 沥青pitch coke 沥青焦炭pitchblende 沥青铀矿pitot tube 皮托管pitting 点腐蚀pivalic acid 特戊酸placer gold 砂金plain water 淡水planck's constant 普朗克常数planck's law of radiation 普朗克辐射定律planckian radiator 完全黑体plane curve 平面曲线plane of polarization 偏光面plane of symmetry 对称面plant base 植物盐基plant chemistry 植物化学plant fermentation 植物发酵plant growth regulator 植物生长第剂plant sterol 植物甾醇plasma 等离子体;血浆plasma chemistry 等离子体化学plaster of paris 烧石膏plasterboard 石膏板plastic clay 塑粘上plastic deformation 塑性变形plastic flow 塑性怜plastic refractory 耐火塑料plastic state 塑性状态plasticator 塑炼机plasticity 可塑度plasticizer 增塑剂plasticizing efficiency 可塑效率plasticizing oil 增塑油plastics 塑料plastification 增塑plastigel 塑性凝胶plastisol 塑溶胶plastomer 塑料plastometer 塑性计plastometry 塑性测定法plate 板plate efficiency 板效率plate glass 板玻璃plate rectification column 板极整六plate theory 塔板理论platelet 血小板plating 镀锌platinized asbestos 披铂石棉platinocyanide 铂化物platinum 铂platinum black 铂黑platinum chloride 氯化铂platinum dish 白金碟platinum electrode 铂电极platinum foil 铂箔platinum oxide 氧化铂platinum plating 镀铂platinum rhodium 铂铑合金platinum sponge 铂棉platinum tetrachloride 四氯化铂platinum wire 铂丝platinzation 镀铂pleochroism 多色性pleomorphism 多形现象plexiglass 普列克斯玻璃plumbate 铅酸盐plumbism 铅中毒plumbite 亚铅酸盐plumbite process 铅酸钠精制过程plumbite solution 博士溶液plunger 柱塞plunger pump 柱塞泵plus strand 正链plutonium 钚plutonium bromide 溴化钚plutonium hydride 氢化钚plutonium oxide 氧化钚plutonium reactor 钚反应堆ply 层plywood 层板pneumatic conveying 气动输送pneumatic conveying drying 气辽燥pneumatic conveyor 气动输送机pneumatic drier 气辽燥器pneumatic separation 气力分选pneumatic stirring 气动搅拌podophyllin 足叶草硷point charge 点电荷point group 点群point of neutralization 中和点poise 泊poiseuille's law 泊肃叶定律poison 毒poison gas 毒气poisoning 中毒poisson's coefficient 泊松系数poisson's distribution 泊松分布poisson's ratio 泊松比polar adsorption 极性吸附polar axis 极轴polar bond 极性键polar compound 极性化合物polar coordinates 极坐标polar molecule 极性分子polar solvent 极性溶剂polarimeter 偏光计polarimetric analysis 旋光分析polarimetry 旋光分析polarity 极性polarizability 极化率polarization 极化polarization analysis 偏光解析polarization capacity 极化额polarization colorimeter 偏光比色计polarization curve 极化曲线polarization potential 极化电势polarization resistance 极化阻力polarized light 偏光polarizer 起偏器polarizing microscope 偏光显微镜polarogram 极谱图polarograph 极谱仪polarographic analysis 极谱分析polarographic cell 极谱池polarographic maximum 极谱极大polarographic wave 极谱波polarography 极谱法pole 极polishing 磨光pollution 沾污pollution load 污染负荷polonium 钋poly 聚polyacid 缩多酸polyacidic base 多价碱polyacrylamide 聚丙烯酰胺polyacrylate 聚丙烯酸酯polyacrylic acid 聚丙烯酸polyacrylonitrile 聚丙烯腈polyaddition reaction 加聚合反应polyalcohol 多元醇polyallomer 聚异质同晶体polyamide 聚酰胺polyamino acid 聚氨基酸polyampholyte 聚两性电解质polyatom 多原子polyatomic molecule 多原子分子polyazo dye 多偶氮染料polybasic acid 多元酸polybutadiene 聚丁二烯polybutadiene rubber 聚丁二烯橡胶polycarbonate 聚碳酸酯polychloroprene 聚氯丁二烯polycondensate 缩聚物polycondensation 缩聚polycrystal 多晶体polycyclic 多环的polycyclic compound 多环化合物polycyclic hydrocarbon 多环烃polydisperse sol 多分散胶polydispersity 多分散性polyelectrolyte 聚合电解质polyene 多烯polyester 聚酯polyester fiber 聚酯纤维polyester resin 聚酯尸polyether 聚醚polyethylene 聚乙烯polyethylene glycol 聚乙二醇polyethylene oxide 聚氧化乙烯polyethylene terephthalate 聚乙烯对苯二甲酸酯polyformaldehyde 聚甲醛polyfunctionality 多功能性polyglycol 聚乙二醇polyhalide 多卤化物polyhalogenide 多卤化物polyhexamethylene adipamide 聚己二酰己二胺polyhydric alcohol 多元醇polyisobutylene 聚异丁烯polyisoprene 聚异戊二烯polymer 聚合物polymer analogue 聚合物系类polymer blend 共混聚合物polymer gasoline 聚合汽油polymer homologue 同系聚合物polymer isomer 聚合物异构体polymeric plasticizer 高分子增塑剂polymerization 聚合polymerization accelerator 聚合促进剂polymerization degree 聚合度polymerization inhibitor 聚合抑制剂polymerization initiator 聚合引发剂polymerization retarder 聚合抑制剂polymerized oil 聚合油polymery 聚合现象polymethacrylate 聚甲基丙烯酸酯polymethyl methacrylate 聚甲基丙烯酸甲酯polymethylene 聚甲烯polymorphic transition 多形转变polymorphism 多形现象polynaphthene 多环烷polynitroethylene 聚硝基乙烯polynuclear complex 多核配合物polynuclear hydrocarbon 多环烃polynucleotide 多核甙酸polyolefin 聚烯烃polyolefine 聚烯烃polyoxyethylene 聚乙二醇polyoxymethylene 聚氧化甲烯polypeptide 多肽polyphase equilibrium 多相平衡polyphenol 多元酚polyphosphate 多聚磷酸酯polypropylene 聚丙烯polypropylene oxide 聚环氧丙烷polyprotic base 多价碱polysaccharide 多糖polystyrene 聚苯乙烯polystyrol 聚苯乙烯polysulfide 多硫化合物polysulfide rubber 聚硫橡胶polysulfonamide 聚磺酰胺polysulfone 聚砜polyterpene 聚萜烯polytetrafluoroethylene 聚四氟乙烯polythene 聚乙烯polythionic acid 连多硫酸polythiourea 聚硫脲polyurea 聚脲polyurethane 聚氨酯polyurethane foam 聚氨酯泡沫体polyurethane resin 聚氨酯尸polyvinyl acetate 聚醋酸乙烯酯polyvinyl alcohol 聚乙烯醇polyvinyl butyral 聚乙烯醇缩丁醛polyvinyl carbazole 聚乙烯咔唑polyvinyl chloride 聚氯乙烯polyvinyl chloroacetate 聚氯醋酸乙烯酯polyvinyl ether 聚乙烯醚polyvinyl fluoride 聚氟乙烯polyvinylamine 聚乙烯胺poppy seed oil 罂粟油population 群体population inversion 粒子数反转porcelain 瓷器porcelain clay 瓷土porcelain crucible 瓷坩埚porcelain earth 瓷土porcelain enamel 搪瓷porcelain glaze 瓷釉porcelain mortar 瓷乳钵pore 微孔porosity 多孔性porous ion exchange resin 多孔离子交换尸porous pot 素瓷器素烧瓶porphin 卟吩porphyrin 卟啉portland cement 波特兰水泥position representation 位置表象positional isomer 位置异构物positive catalyst 正催化剂positive displacement meter 正排量计positive displacement pump 正排量泵positive electrode 阳电极positive ion 阳离子positive lens 会聚透镜positive maximum 正极大positive plate 阳极板positive valency 正化合价positron 阳电子postignition 后点火postprecipitation 后沉淀pot 罐pot life 可用时间potash 草碱potash alum 茂potash bulb 钾球potash fusion 钾熔化potash glass 钾玻璃potash lye 钾碱液potash mica 钾云母potash soap 钾皂potassic fertilizer 钾肥料potassium 钾potassium acetate 醋酸钾potassium alum 茂potassium aluminate 铝酸钾potassium antimonyl tartrate 酒石酸氧锑钾potassium arsenate 砷酸钾potassium arsenite 亚砷酸钾potassium bicarbonate 碳酸氢钾potassium bisulfate 硫酸氢钾potassium bisulfite 亚硫酸氢钾potassium bromate 溴酸钾potassium bromide 溴化钾potassium carbonate 碳酸钾potassium chlorate 氯酸钾potassium chloride 氯化钾potassium chromate 铬酸钾potassium dichromate 重铬酸钾potassium dihydrogenphosphate 磷酸二氢钾potassium feldspar 钾长石potassium ferricyanide 铁氰化钾potassium ferrocyanide 亚铁氰化钾potassium fluoride 氟化钾potassium hexacyanoferrate 亚铁氰化钾potassium hydrogen oxalate 草酸氢钾potassium hydrogen phthalate 氢酞酸钾potassium hydroxide 氢氧化钾potassium hypochlorite 次氯酸钾potassium iodate 碘酸钾potassium iodide 碘化钾potassium nitrate 硝酸钾potassium nitrite 亚硝酸钾potassium perchlorate 高氯酸钾potassium periodate 高碘酸钾potassium permanganate 过锰酸钾potassium peroxodisulfate 过硫酸钾potassium persulfate 过硫酸钾potassium phosphate 磷酸钾potassium polysulfide 多硫化钾potassium primary phosphate 磷酸二氢钾potassium pyroantimonate 焦锑酸钾potassium pyrophosphate 焦磷酸钾potassium pyrosulfate 焦硫酸钾potassium rhodanide 硫氰酸钾potassium silicate 硅酸钾potassium sodium carbonate 碳酸钠钾potassium sodium tartrate 罗谢尔盐potassium sulfate 硫酸钾potassium sulfide 硫化钾potassium sulfite 亚硫酸钾potassium tartrate 酒石酸钾potassium thiocyanate 硫氰酸钾potassium thiosulfate 硫代硫酸钾potassium xanthate 黄原酸钾potato starch 马铃薯淀粉potential 势potential barrier 势垒potential difference 电势差potential energy 位能potential gradient 电势梯度potential well 势阱potentiometer 电势计potentiometric analysis 电势分析potentiometric cell 电位滴定池potentiometric titration 电势滴定potentiostatic electrolysis 静电位电解potter's clay 塑粘上pottery 陶器potting 浇灌pour point 怜点pour point depressant 降凝剂powder 粉powder metallurgy 粉末冶金powdered catalyst 粉状催化剂powdered coal 粉煤powdery yeast 粉状酵母power 力power consumption 功率消耗power factor 功率因数pozzolanic cement 火山灰水泥practical units 实用单位prandtl number 普朗特数praseodymium 镨praseodymium acetate 醋酸镨praseodymium bromate 溴酸镨praseodymium bromide 溴化镨praseodymium carbonate 碳酸镨praseodymium chloride 氯化镨praseodymium hydroxide 氢氧化镨praseodymium molybdate 钼酸镨praseodymium nitrate 硝酸镨praseodymium oxalate 草酸镨praseodymium oxychloride 氯氧化镨praseodymium selenate 硒酸镨praseodymium sesquioxide 二氧化二镨praseodymium sulfate 硫酸镨praseodymium sulfide 硫化镨precious metal 贵金属precious stone 宝石precipitability 沉淀性precipitant 沉淀剂precipitate 沉淀物precipitated barium carbonate 沉淀碳酸钡precipitated sulfur 沉淀硫precipitating agent 沉淀剂precipitation 沉淀;降水precipitation agent 沉淀剂precipitation analysis 沉淀分析precipitation membrane 沉淀膜precipitation reaction 沉降反应precipitation titration 沉淀滴定precipitation value 沉淀值precipitator 沉淀器precision 精度precision balance 精密天平precision instrument 精密仪器precleaning 预净化precooling 预冷却precure 早期硫化precursor 前驱物质predissociation 预离解predrying 预干燥pregnenolone 孕烯醇酮preheater 预热器preheating 预热preheating furnace 预热炉preheating oven 预热炉preliminary cleaning 预净化preliminary drying 预干燥preparation 制法preparation of a surface 表面处理preparative gas chromatography 制备级气相色谱法prepared paint 低涂料prepolymer 预聚合物preservation 保存preservatives 保存剂preserve hydrogen with rare earths 用稀土金属储存氢press 压机press cake 滤饼press cure 加压硫化press filter 压滤机press vulcanization 加压硫化pressed glass 压制玻璃pressed yeast 压缩酵母pressing 压制pressure 压力pressure base factor 基压系数pressure distillation 加压蒸馏pressure filtration 加压过滤pressure gage 压力计pressure loss 压力损失pressure medium 压力介质pressure regulator 压力第器pressure sensitive adhesive 压敏粘着剂pressure sensitive dye 压敏色素pressure still 加压蒸馏器pressure tank 压力罐pretreatment 预处理prevulcanization 早期硫化primary air 一次空气primary alcohol 伯醇primary amine 伯胺primary carbon atom 伯碳原子primary cell 原电池primary phase 初晶相primary salt 一代盐primary winding 初级线圈prime coat 底涂primer 底层涂料primidone 普里米酮priming coat 底涂priming paint 底层涂料priming tube 雷管primitive cell 初基胞primitive lattice 初基点阵principal axis of inertia 惯性轴principal component 知组分principal fermentation 知发酵酌principal quantum number 挚子数principal reaction 知反应principal series 值列principal valence 汁子价principle of corresponding states 对应状态原理principle of energy dissipation 能量耗散原理principle of least action 最小酌原理principle of maximum overlapping 最大重迭原则principle of superposition 迭加原理prins reaction 普林斯反应printing 印刷printing ink 印刷墨printing paper 印刷纸prism 棱镜prism for infrared ray 红外线棱镜prism spectrograph 棱镜光谱仪prismatic spectrum 棱镜光谱pristane 姥鲛烷probability 概率probability amplitude 概率幅probability density 概率密度probability distribution 概率分布probability space 概率空间probable error 概率误差procainamide 普鲁卡因胺procaine 普鲁卡因procaine base 普鲁卡因碱process 工程process analyzer 工程分析计process monitoring 工程监视process steam 加工蒸汽process variable 工艺变量processing 加工processing aid of textile 织物加工助剂producer 发生炉producer gas 发生炉煤气producer gas reaction 发生炉气体反应product 产品product of distillation 蒸馏产物production 生产production of pairs 正负电子对产生proflavine 前黄素progesterone 孕酮prolactin 促乳泌素prolamin 醇溶朊prolidase 脯肽酶proline 脯氨酸promazine 普马嗪promedol 二甲哌替啶promethazine 普鲁米近promethium 钜prominence 日珥promotor 促进剂pronamide 拿草特propadiene 丙二烯propagation 增长反应propagation rate 传播速率propanal 丙醛propane 丙烷propanoic acid 丙酸propanol 丙醇propargyl alcohol 炔丙醇propargyl bromide 炔丙基溴propargylic acid 丙炔酸propeller 螺旋桨propeller agitator 螺旋桨式搅拌器propeller stirrer 螺旋桨式搅拌器propene 丙烯proper value 本盏proper vibration 固有振动propiolic acid 丙炔酸propionaldehyde 丙醛propionamide 丙酰胺propionic acid 丙酸propionic anhydride 丙酸酐propionitrile 丙腈propiophenone 苯丙酮propolis 蜂巢腊胶proportion 比例proportional counter 正比计数管proportional intensification 比例加强proportional limit 比例极限proportional reduction 比例缩减proportioning pump 计量泵propyl acetate 醋酸丙酯propyl alcohol 丙醇propyl aldehyde 丙醛propyl bromide 丙基溴propyl chloride 丙基氯propyl gallate 没食子酸丙酯propyl mercaptan 丙硫醇propyl propionate 丙酸丙酯propyl sulfide 二丙硫propylamine 丙胺propylbenzene 丙基苯propylene 丙烯propylene glycol 丙二醇propylene oxide 环氧丙烷propylidene 亚丙烷propyliodone 丙碘酮propylthiouracil 丙硫氧嘧啶propyne 丙炔prosthetic group 辅基protactinium 镤protamine 精蛋白protease 朊酶protease inhibitor 蛋白酶抑制剂protection 保护。

Unit 1 Chemical Industry化学工业1.Origins of the Chemical IndustryAlthough the use of chemicals dates back to the ancient civilizations, the evolution of what we know as the modern chemical industry started much more recently. It may be considered to have begun during the Industrial Revolution, about 1800, and developed to provide chemicals roe use by other industries. Examples are alkali for soapmaking, bleaching powder for cotton, and silica and sodium carbonate for glassmaking. It will be noted that these are all inorganic chemicals. The organic chemicals industry started in the 1860s with the exploitation of William Henry Perkin’s discovery if the first synthetic dyestuff—mauve. At the start of the twentieth century the emphasis on research on the applied aspects of chemistry in Germany had paid off handsomely, and by 1914 had resulted in the German chemical industry having 75% of the world market in chemicals. This was based on the discovery of new dyestuffs plus the development of both the contact process for sulphuric acid and the Haber process for ammonia. The later required a major technological breakthrough that of being able to carry out chemical reactions under conditions of very high pressure for the first time. The experience gained with this was to stand Germany in good stead, particularly with the rapidly increased demand for nitrogen-based compounds (ammonium salts for fertilizers and nitric acid for explosives manufacture) with the outbreak of world warⅠin 1914. This initiated profound changes which continued during the inter-war years (1918-1939).1．化学工业的起源尽管化学品的使用可以追溯到古代文明时代，我们所谓的现代化学工业的发展却是非常近代（才开始的）。

01. THE ELEMENTS AND THE PERIODIC TABLE 01元素和元素周期表。

The number of protons in the nucleus of an atom is referred to as the atomic number, or proton number, Z. The number of electrons in an electrically neutral atom is also equal to the atomic number, Z. The total mass of an atom is determined very nearly by the total number of protons and neutrons in its nucleus. This total is called the mass number, A. The number of neutrons in an atom, the neutron number, is given by the quantity A-Z.原子核中的质子数的原子称为原子序数，或质子数，卓电子数的电中性的原子也等于原子序数Z，总质量的原子是非常接近的总数量的质子和中子在原子核。

这被称为质量数，这个数的原子中的中子，中子数，给出了所有的数量The term element refers to, a pure substance with atoms all of a single kind. To the chemist the "kind" of atom is specified by its atomic number, since this is the property that determines its chemical behavior. At present all the atoms from Z = 1 to Z = 107 are known; there are 107 chemical elements. Each chemical element has been given a name and a distinctive symbol. For most elements the symbol is simply the abbreviated form of the English name consisting of one or two letters, for example:术语元素是指，一个纯粹的物质与一个单一的一种原子。

化学工程与工艺专业英语课文翻译Unit 1 Chemical Industry化学工业 ..................................................... - 2 - Unit 2 Research and Development研究和开发 .................................. - 7 - Unit 3 Typical Activities of Chemical Engineers化学工程师的例行工作 . -13 -Unit 4 Sources of Chemicals化学资源 .............................................. - 19 - Unit 5 Basic Chemicals基本化学品................................................... - 24 - Unit 6 Chlor-Alkali and Related Processes氯碱及其相关过程.......... - 26 - Unit 7 Ammonia, Nitric Acid and Urea氯、硝酸和尿素 ................... - 31 - Unit 8 Petroleum Processing石油加工 ............................................. - 37 - Unit 9 Polymers 聚合物.................................................................. - 40 - Unit 10 What Is Chemical Engineering?什么是化学工程学 .............. - 45 - Unit 11 Chemical and Process Thermodynamics化工热力学 ........... - 52 - Unit 12 What do we mean by transport phenomena ?如何定义传递现象....................................................................................................... - 57 - Unit 13 Unit Operations in Chemical Engineering化学工程中的单元操作....................................................................................................... - 61 - Unit14 Distillation蒸馏 ..................................................................... - 65 - Unit 15 Solvent Extraction, Leaching and Adsorption溶剂萃取，浸取和吸附................................................................................................... - 71 -Unit 16 Evaporation, Crystallization and Drying蒸发、结晶和干燥.- 76 - Unit 17 Chemical Reaction Engineering化学反应工程 ..................... - 82 - Unit18 Chemical Engineering Modeling化工建模 ............................ - 88 - Unit 19 Introduction to Process Design过程设计简介 ..................... - 92 - Unit 20 Material Science and Chemical Engineer材料科学和化学工程 .. -97 -Unit 21 Chemical Industry and Environment化学工业与环境 ....... - 103 -Unit 1 Chemical Industry化学工业1．化学工业的起源尽管化学品的使用可以追溯到古代文明时代，我们所谓的现代化学工业的发展却是非常近代（才开始的）。

U27 The acid-base titra‎tion start‎s with the disso‎lutio‎n of the solid‎ acid sampl‎e in deion‎i zed water‎. Add the end-point‎indic‎a tor, which‎is pheno‎l phth‎a lein‎, with two drops‎to each flask‎conta‎i ning‎the acid sampl‎e and deion‎i zed water‎.Prope‎r ly label‎the flask‎s. Be consi‎s tent‎in all of the sampl‎e s when addin‎g the indic‎a tor. Swirl‎the flask‎s until‎the solid‎acid is compl‎e tely‎disso‎l ved. Final‎l y, rinse‎with deion‎i zed water‎three‎times‎aroun‎d, which‎is criti‎c al to ensur‎e that all solid‎acid has been remov‎e d from the flask‎walls‎and disso‎l ved in the solut‎i on. All solid‎parti‎c les must be disso‎l ved prior‎to the titra‎t ion.7、酸碱滴定伴‎随着于固体‎酸溶解于去‎离子水中发‎生。

在每支装有‎酸样品和去‎离子水的试‎管中加入两‎滴终点指示‎剂——酚酞，并在试管上‎贴好标签。

在加指示剂‎的时候保持‎所有样品条‎件一致。

震荡试管直‎到所有固体‎酸完全溶解‎。

最后，用去离子水‎冲洗试管壁‎周围三次，确保试管壁‎上的固体酸‎从试管上脱‎落并溶解于‎溶液中。

专业英语文献翻译Quantifying the Cluster of Differentiation 4 Receptor Density on Human T Lymphocytes Using Multiple Reaction Monitoring Mass Spectrometry。

ABSTRACT： Cluster of differentiation 4 （CD4） is an important glycoprotein containingfour extracellular domains, a transmembrane portion and a short intracellular tail. It locates on the surface of various types of immune cells and performs a critical role in multiple cellular functions such as signal amplification and activation of T cells。

It is well-known as a clinical cell surface protein marker for study of HIV progression and for defining the T helper cell population in immunological applications。

Moreover，CD4 protein has been used as a biological calibrator for quantification of other surface and intracellular proteins. However，flow cytometry, the conventional method of quantification of the CD4 density on the T cell surface depends on antibodies and has suffered from variables such as antibody clones, the ommatophore and conjugation chemistries, the fixation conditions， and the flow cytometric quantification methods used. In this study, we report the development of a highly reproducible na no liquid chromatography−multiple reaction monitoring mass spectrometry-based quantitative method to quantify the CD4 receptor density in units of copy number per cell on human CD4+ T cells. The method utilizes stable isotope—labeled full—length standard CD4 as an internal standard to measureendogenous CD4 directly, without the use of antibodies. The development of the mass spectrometry-based approach of CD4 protein quantification is important as a complementary strategy to validate the analysis from the cytometry-based conventional method。

化学及化工专业词汇英语翻译package 包装packed absorption tower 填充吸收塔packed column 填充塔packed dyeing 填充染色packed reaction column 填充反应塔packed rectification tower 填充精馏塔packed tower 填充塔packing 填充物packing density 填充密度packing paper 包装纸padding 表面染色paddle agitator 桨式混合机paddle mixer 桨式混合机paint 涂料paint hardner 镀金粘料paint remover 油漆去除剂paint stripper 油漆去除剂pair annihilation 对湮没pair creation 正负电子对产生pair ion 离子对pale crepe 苍铍胶palladium 钯palladium asbestos 钯石棉palladium black 钯黑palladium chloride 氯化钯palladium nitrate 硝酸钯palladium oxide 氧化钯palladium sponge 海绵钯palm kernel oil 棕榈仁油palm oil 棕榈油palmarosa oil 掌玫油palmitate 棕榈酸盐palmitic acid 棕榈酸palmitin 棕榈精palmitone 棕榈酮pan mill 碾磨盘panchromatic film 全色胶片panchromatic plate 全色干片pancreatin 胰酶pancreozymin 肠促胰酶素pangamic acid 潘氨酸pantothenic acid 泛酸papain 木瓜酶papaverine 罂粟碱paper chromatography 纸色谱分析法paper electrophoresis 纸电泳paper filter 纸滤器paper industry 造纸工业paper machine 造纸机paper pulp 纸浆paper stencilling 刻花纸paper yarn 纸绳para aminohippuric acid 对氨基马尿酸para hydrogen 仲氢para isomer 对位异构体para molecule 仲分子para position 对位para red 对位红para rubber 三叶橡胶paraaldehyde 仲醛parabanic acid 仲班酸parabola 抛物线paracasein 副酪朊parachor 等张比容paraconic acid 仲康酸paracyanogen 仲氰paraffin 石蜡paraffin base crude 石蜡基原油paraffin hydrocarbon 烷属烃paraffin oil 石蜡油paraffin stock 石蜡原油paraffin wax 石蜡paraformaldehyde 仲甲醛parafuchsine 副品红paragenesis 共生paragonite 钠云母paraldol 仲醛醇parallel flow 并流平行流parallel reaction 平行反应paralysis 麻痹paralyzer 麻痹药paramagnetic resonance 顺磁共振paramagnetic substance 顺磁质paramagnetism 顺磁性parameter 参数paramine 对胺paramorphism 同质异晶paranitroaniline red 对位红pararosaniline 副蔷薇胺parastrophe 对位取代化合物parathion 硝苯硫磷酯paraxanthine 副黄嘌呤paraxylene 对二甲苯parchment 羊皮纸parchment paper 仿羊皮纸parent name 母体名parent substance 母体parinol 苯吡醇paris green 巴黎绿paris white 巴黎胡粉白parity 奇偶性parkerizing 磷化处理parpon 帕尔庞partial combustion 部分燃烧partial condensation 部分冷凝partial condenser 分馏柱partial molar quantity 偏摩尔数量partial molar volume 偏摩尔体积partial pressure 分压partial reaction 部分反应partial valence 余价participation of neighboring group 邻基参与particle 粒子particle counting 粒子计数法particle diameter 颗粒直径particle electrophoresis 粒子电泳particle induced x ray emission 粒子诱导x 射线发射particle scattering factor 粒子散射因数particle size 粒度particle size analysis 粒径分析particle thickness technique 质点厚度测量技术parting 分离parting agent 分离剂partition 配分partition chromatography 配分色层法partition coefficient 配分系数partition function 配分函数partition wall 隔墙passivation 钝化酌passivation potential 钝化电势passive state 钝态passivity 钝态paste 糊剂paste mixer 惮机paste paint 厚漆paste resin 糊状尸pasteboard 纸板pasted plate 涂浆的板pasteurization 巴氏杀菌pasteurizer 巴氏灭菌器pasting 糊化patchouli oil 绿叶油patent 专利pattern 图样pattern recognition 模式辫认peak 峰值peak inverse voltage 最大反向电压peak load 峰值负荷peak potential 顶点电位peanut oil 花生油pearl 珍珠pearl ash 珍珠灰pearl essence 珍珠粉pearl polymerization 成珠聚合pearl white 锌钡白pearlite 珍珠岩peat 泥炭peat tar 泥煤焦油pebble mill 砾磨机pectic acid 果胶酸pectic substances 果胶质pectin 果胶pectinase 果胶酶pectization 凝结pectocellulose 果胶纤维素peeling 剥落peep hole 窥孔pegmatite 伟晶岩pelargonaldehyde 壬醛pelargonic acid 正壬酸pelargonidin 花葵素pellet 粒状pellet cooler 颗粒冷却器pelletizer 造粒机pellotine 佩落碱pendulum mill 摆旋式研磨机penetrability 穿透性penetrant 渗透剂penetrating agent 渗透剂penetration 穿透;渗入度penetration complex 透入配合物penetration test 贯入度试验penetrator 针入度计penetrometer 透度计penicillase 青霉素酶penicillin 青霉素pentacarbonyl iron 五羰基铁pentacene 并五苯pentachlorophenol 五氯酚pentadiene 戊二烯pentaerythritol 季戊四醇pentaerythritol tetranitrate 季戊四醇四硝酸酯pentamethylene 环戊烷pentamethylenediamine 戊甲撑二胺pentane 戊烷pentane thermometer 戊烷温度计pentanol 戊醇pentasol 成氯醇pentene 戊烯penthrit 季戊四醇四硝酸酯pentlandite 镍黄铁矿pentobarbital 戊巴比妥pentosan 多缩戊糖pentose 戊糖pentose phosphate cycle 戊糖磷酸循环pentose phosphate pathway 戊糖磷酸途径pentyl alcohol 戊醇pentyne 戊炔peppermint 薄荷peppermint oil 薄荷油pepsin 胃蛋白酶pepsinogen 胃蛋白酶原peptidase 肽酶peptide 肽peptide bond 肽键peptide linkage 肽键peptide synthetase 肽合成酶peptidoglycan 肽聚糖peptization 胶溶酌peptized fuel 胶溶燃料peptizer 胶溶剂peptizing agent 胶溶剂peptone 胨peracetic acid 过乙酸peracid 过酸peralcohol 过醇perbenzoic acid 过苯酸perborate 过硼酸盐perboric acid 过硼酸perbromate 过溴酸盐perbromic acid 过溴酸percarbonate 过碳酸盐percent grafting 接枝率perchlorate 高氯酸盐perchloric acid 高氯酸perchloride 高氯化物perchloroethane 六氯乙烷percolation 沥滤percolator 渗滤器percussion cap 雷管percussion powder 雷管火药perfect analysis 完全分析perfect black body 完全黑体perfect combustion 完全燃烧perfect crystal 完整晶体perfect elasticity 完全弹性perfect fluid 理想铃perfect gas 完美气体perfect mixing 完全混合perfect solution 完美溶液perfluorocyclobutane 过氟化环丁烷perforated pipe distributor 喷淋器多孔管分布器perforated plate 多孔板perforated plate distillation 多孔板蒸馏perforated plate tower 孔板塔performance testing 性能试验performic acid 过甲酸perfume 香料perfume extracting solvent 香料抽出溶剂perfume industry 香料工业perhydride 过氢化物perhydrol 强双氧水periclase 方镁石perilla oil 紫苏子油period 周期periodate 高碘酸盐periodic acid 高碘酸periodic law 周期律periodic precipitation 间歇沉淀periodic reaction 周期反应periodic system of elements 元素周期系periodic table 周期表periodide 高碘化物periphery 边界periplogenin 杠柳甙元perissad 奇价元素peritectic 包晶peritectic point 包晶点perkin reaction 佩金反应permanence 持久性permanent current 持恒电流permanent dipole 永久偶极子permanent expansion 永久膨胀permanent gas 永久气体permanent hardness 永久硬度permanent magnet 永磁铁permanent set 永久变形permanganate 高锰酸盐permanganate bleaching 高锰酸盐漂白permanganate titration 高锰酸盐滴定法permanganic acid 高锰酸permanganometry 高锰酸盐滴定法permeability 渗透性permeable membrane 可透膜permeameter 渗透计permeametry 渗透测定法permeation 渗透permissible error 容许误差permissible explosive 安全炸药permitted explosive 安全炸药permselective membrane 选择性渗透膜permselectivity 选择渗透性permutation 置换permutite 人造沸石perovskite 钙钛矿peroxidase 过氧物酶peroxide 过氧化peroxide effect 过氧化物效应peroxide index 过氧化值peroxide number 过氧化值peroxo acid 过氧基酸peroxy acid 过酸peroxydisulfuric acid 过硫酸perpetual motion 永久运动perphenazine 佩吩嗪perrhenate 高铼酸盐perrhenic acid 高铼酸perruthenate 过钌酸盐persalt 过酸盐persian red 铬红persistent current 持恒电流personal error 人为误差persorption 吸混酌persulfate 过硫酸盐persulfide 过硫化物persulfuric acid 过硫酸peru balsam 秘鲁香脂pesticide 杀虫剂pestle 杵棒pethidine 哌替啶pethidine hydrochloride 盐酸哌替啶petri dish 陪替氏培养皿petrochemical industry 石油化学工业petrochemical reaction 石油化学反应petrochemicals 石油化学产品petrochemistry 石油化学petrolatum 矿脂petroleum 石油petroleum acid 石油酸petroleum asphalt 石油沥青petroleum benzine 石油醚petroleum chemicals 石油化学产品petroleum chemistry 石油化学petroleum coke 石油焦炭petroleum distillation 石油蒸馏petroleum emulsion 石油乳剂petroleum ether 石油醚petroleum gas 石油气体petroleum grease 石油润滑脂petroleum industry 石油工业petroleum isomerization process石油异构化过程petroleum jelly 矿脂petroleum pitch 石油沥青petroleum pitch coke 石油沥青焦炭petroleum product 石油产品petroleum refinery 石油加工厂petroleum refining 石油提炼petroleum refining industry 石油炼制工业petroleum resin 石油尸petroleum wax 石油蜡ph 氢指数ph electrode ph 电极ph indicator ph 指示剂ph meter ph 计ph standard solution ph 标准溶液ph test paper ph 试验纸ph value ph 值phanerocrystalline 显晶质pharmaceutical chemistry 药物化学pharmaceutics 制药学pharmacology 药理学pharmacy 药学phase 相phase average 相平均phase boundary 相界phase boundary potential 相界电位phase change 相转移phase contrast microscope 相差显微镜phase diagram 相图phase equilibrium 相平衡phase modulation 相位灯phase rule 相律phase sensitive detection 相敏检波phase separation 相分离phase shifter 移相器phase solubility 相溶解度phase solubility analysis 相溶度分析phase space 相空间phase titration 相滴定phase trajectory 相位轨道phase transfer catalyst 相转移催化剂phase transition 相转移phellandren 菲兰烯phenacetin 非那巍phenacite 硅铍石phenacyl alcohol 苯甲酰甲醇phenacyl bromide 苯甲酰甲基溴phenadon 非那酮phenamine 非那明phenanthrene 菲phenanthrenequinone 菲醌phenanthroline 二氮杂菲phenanthroline indicator 菲绕啉指示剂phenazine 吩嗪phenetidin 氨基苯乙醚phenetidine 氨基苯乙醚phenetole 苯乙醚phenobarbital 苯巴比妥phenocryst 斑晶phenol 酚phenol ether 苯酚醚phenol formaldehyde resin 苯酚甲醛尸phenol lignin 苯酚木素phenol red 酚红phenolase 酚酶phenolate 酚盐phenolic acid 酚酸phenolic resin 酚尸phenolic resin varnish 酚醛清漆phenolphthalein 酚酞phenolsulfonic acid 苯酚磺酸phenoplast 酚醛塑料phenosafranine 酚藏花红phenothiazine 吩噻嗪phenoxazine 吩恶phenoxide 酚盐phenoxyacetic acid 苯氧基乙酸phenyl acetate 醋酸苯酯phenyl ether 苯基醚phenyl isocyanate 异氰酸苯酯phenyl salicylate 萨罗phenylacetaldehyde 苯乙醛phenylacetamide 苯乙酰胺phenylacrylic acid 苯基丙烯酸phenylalanine 苯丙氨酸phenylbutazone 苯基丁氮酮phenylcinchonic acid 辛可芬phenylene 苯撑phenylenediamine 撑二氨phenylethyl acetate 醋酸苯乙酯phenylethyl alcohol 苯基乙醇phenylethyl isobutyrate 异丁酸苯乙酯phenylethyl propionate 丙酸苯乙酯phenylethylacetic acid 苯乙基醋酸phenylhydrazine 苯肼phenylmagnesium bromide 溴化苯镁phenylmagnesium chloride 氯化苯镁phenylmagnesium halide 卤化苯镁phenylmagnesium iodide 碘化苯镁phenylmercuric acetate 核酸汞phenylmercuric chloride 氯化苯汞phenylmorpholine 苯替吗啉phenylphenol 苯基苯酚phenylpiperazine 苯基哌嗪pheromone 信息素phlogiston 燃素phlorizin 根皮甙phloroglucinol 根皮山梨醇phonochemistry 声化学phonon 声子phorone 佛尔酮phosgene 光气phosphamide 磷酰胺phosphamidon 磷酰胺酮phosphatase 磷酸酶phosphate 磷酸盐phosphate glass 磷酸盐玻璃phosphatic ferfilizer 磷肥phosphatidic acid 磷脂酸phosphatizing 磷酸盐处理phosphide 磷化物phosphine 磷化氢phosphite 亚磷酸盐phosphocreatine 磷酸肌酸phosphoenolpyruvate 磷酸烯醇丙酮酸phospholipid 磷脂phosphomolybdate 磷钼酸盐phosphomolybdic acid 磷钼酸phosphomonoesterase 磷酸单酯酶phosphoprotein 磷蛋白phosphor 磷光体phosphor bronze 磷青铜phosphor salt 磷盐phosphorescence 磷光phosphoretted hydrogen 磷化氢phosphoric acid 磷酸phosphoric acid anhydride 磷酐phosphorimetric analysis 磷光分析phosphorimetry 磷光分析phosphorite 磷钙土phosphoro organic insecticide 磷有机杀虫剂phosphorolysis 磷酸解phosphoroscope 磷光计phosphorous acid 亚磷酸phosphorous anhydride 亚磷酸酐phosphorus 磷phosphorus chloride 氯化磷phosphorus nitride 氮化磷phosphorus oxychloride 磷酰氯phosphorus pentabromide 五溴化磷phosphorus pentachloride 五氯化磷phosphorus pentasulfide 五硫化二磷phosphorus sesquisulfide 三硫化四磷phosphorus tribromide 三溴化磷phosphorus trichloride 三氯化磷phosphorus trifluoride 三氟化磷phosphorus triiodide 三碘化磷phosphoryl chloride 磷酰氯phosphorylase 磷酸化酶phosphotungstic acid 磷钨酸photobiochemistry 光生物化学photocatalysis 光催化酌photocell 光电池photochemical catalysis 光催化photochemical equilibrium 光化学平衡photochemical reaction 光化反应photochemistry 光化学photochromic reaction 彩色反应photochromism 光致变色现象photochromy 彩色照相术photoconductor 光电导体photocurrent 光电流photodetachment 光致分离photodimerization 光二聚酌photodissociation 光解酌photodosimetry 照相剂量学photoelasticity 光弹性photoelectric cell 光电池photoelectric color comparator 比色仪photoelectric colorimeter 光电比色计photoelectric colorimetry 光电比色法photoelectric effect 光电效应photoelectric fraction collector 光电分级收集器photoelectric pyrometer 光电高温计photoelectric spectrophotometer光电分光光度计photoelectric tube 光电管photoelectrochemistry 光电化学photoelectron 光电子photoemission 光电发射photofission 光致裂变photogel 摄影煤photographic characteristic curve照相特性曲线photographic chemistry 照相化学photographic contrast 照相对比度photographic densitometer 照相密度计photographic density 照相底片密度photographic developer 显象剂photographic development 照相显相photographic emulsion 照相乳胶photographic emulsion layer 感光层photographic film 胶片photographic material 照相材料photographic negative 照相底片photographic paper 印相纸photographic plate 照相底片photographic positive 照相正片photographic process 照相法photography 照相photogyration 照相底片photohomolysis 光同种溶解photoionization 光致电离photoisomer 光异构体photolithography 照相平版印刷photoluminescence 光致发光photolysis 光分解photomeson 光介子photometer 光度计photometric titration 光度滴定photon 光子photonuclear reaction 光致核反应photooxidation 光氧化photophoresis 光泳现象photophosphorylation 光磷酸化photopigment 光色素photopolymer 光聚合物photopolymerization 光聚合photoreactive chlorophyll 光反应性叶绿素photoreduction 光致还原photorespiration 光呼吸photosensitive glass 光敏玻璃photosensitive polymer 光敏聚合物photosensitive resin 感光尸photosensitivity 光敏性photostructural transformation 光结构转变photosynthesis 光合酌phototropy 光致变色现象phototube 光电管phthalaldehyde 酞醛phthalaldehydic acid 苯醛酸phthalamide 酞酰胺phthalate 邻苯二甲酸盐phthalazine 酞嗪phthalein 酞phthalein dye 酞类染料phthalic acid 酞酸phthalic anhydride 酞酐phthalide 苯酞phthalimide 酞亚胺phthalocyanine 酞菁phthalocyanine blue 酞菁蓝phthalonic acid 酞酮酸phthalonitrile 酞腈phthalyl chloride 酞酰氯phthalylsulfathiazole 邻苯二甲酰基磺胺噻唑phylloquinone 叶绿醌physical adsorption 物理吸附physical chemistry 物理化学physical chemistry of high polymer 高聚物物理化学physical development 物理显影physical property 物理性质physical ripening 物理成熟physico chemical analysis 物理化学分析法physiological acidic fertilizer 生理酸性肥料physiological chemistry 生理化学physiological salt solution 生理盐溶液physiological solution 生理溶液physisorption 物理吸附physostigmine 毒扁豆碱phytase 植酸酶phytic acid 肌醇六磷酸phytin 非汀phytochemistry 植物化学phytochrome 光敏素phytol 植醇phytosterol 植物甾醇phytotoxin 植物毒素picene 二萘品苯picoline 皮考啉picolinic acid 皮考啉酸picral 苦醛腐蚀溶液picramic acid 苦氨酸picrate 苦味酸盐picric acid 苦味酸picrolonate 苦酮酸盐picrolonic acid 苦酮酸picrotoxin 苦毒piezochemistry 高压化学piezoelectric effect 压电效应piezoelectric vibrator 压电振子piezoelectricity 压电piezometer 压力计pig iron 生铁pigment 颜料pigmentation 着色pilocarpine 匹鲁卡品pilot cell 领示电池pilot ion 领示离子pilot plant 中间工厂pimaric acid 海松酸pimaricin 匹马菌素pimelic acid 庚二酸pimple 小突起pinacol 频哪醇pinacolin 特己酮pinacolin rearrangement 邻二叔醇重排酌pinacone 频哪醇pinane 蒎烷pincette 小钳子pinch cock 弹簧夹pinch effect 夹紧效应pine oil 松释pine resin 松脂pine tar oil 松焦油pinene 蒎烯pinic acid 蒎酸pink salt 锡盐pinoline 松香烃pipe furnace 管式炉pipe line 管路pipe still 管式蒸馏装置pipecoline 哌可啉piperazine 哌嗪piperic acid 胡椒酸piperidine 氮己烷piperine 胡椒碱piperonal 胡椒醛piperonylic acid 胡椒基酸piperylene 戊间二稀pipet 吸移管pipet support 吸移管架pisang wax 香蕉蜡pisanite 铜绿矾piston compressor 活塞压缩机piston pump 活塞泵pitch 沥青pitch coke 沥青焦炭pitchblende 沥青铀矿pitot tube 皮托管pitting 点腐蚀pivalic acid 特戊酸placer gold 砂金plain water 淡水planck's constant 普朗克常数planck's law of radiation 普朗克辐射定律planckian radiator 完全黑体plane curve 平面曲线plane of polarization 偏光面plane of symmetry 对称面plant base 植物盐基plant chemistry 植物化学plant fermentation 植物发酵plant growth regulator 植物生长第剂plant sterol 植物甾醇plasma 等离子体;血浆plasma chemistry 等离子体化学plaster of paris 烧石膏plasterboard 石膏板plastic clay 塑粘上plastic deformation 塑性变形plastic flow 塑性怜plastic refractory 耐火塑料plastic state 塑性状态plasticator 塑炼机plasticity 可塑度plasticizer 增塑剂plasticizing efficiency 可塑效率plasticizing oil 增塑油plastics 塑料plastification 增塑plastigel 塑性凝胶plastisol 塑溶胶plastomer 塑料plastometer 塑性计plastometry 塑性测定法plate 板plate efficiency 板效率plate glass 板玻璃plate rectification column 板极整六plate theory 塔板理论platelet 血小板plating 镀锌platinized asbestos 披铂石棉platinocyanide 铂化物platinum 铂platinum black 铂黑platinum chloride 氯化铂platinum dish 白金碟platinum electrode 铂电极platinum foil 铂箔platinum oxide 氧化铂platinum plating 镀铂platinum rhodium 铂铑合金platinum sponge 铂棉platinum tetrachloride 四氯化铂platinum wire 铂丝platinzation 镀铂pleochroism 多色性pleomorphism 多形现象plexiglass 普列克斯玻璃plumbate 铅酸盐plumbism 铅中毒plumbite 亚铅酸盐plumbite process 铅酸钠精制过程plumbite solution 博士溶液plunger 柱塞plunger pump 柱塞泵plus strand 正链plutonium 钚plutonium bromide 溴化钚plutonium hydride 氢化钚plutonium oxide 氧化钚plutonium reactor 钚反应堆ply 层plywood 层板pneumatic conveying 气动输送pneumatic conveying drying 气辽燥pneumatic conveyor 气动输送机pneumatic drier 气辽燥器pneumatic separation 气力分选pneumatic stirring 气动搅拌podophyllin 足叶草硷point charge 点电荷point group 点群point of neutralization 中和点poise 泊poiseuille's law 泊肃叶定律poison 毒poison gas 毒气poisoning 中毒poisson's coefficient 泊松系数poisson's distribution 泊松分布poisson's ratio 泊松比polar adsorption 极性吸附polar axis 极轴polar bond 极性键polar compound 极性化合物polar coordinates 极坐标polar molecule 极性分子polar solvent 极性溶剂polarimeter 偏光计polarimetric analysis 旋光分析polarimetry 旋光分析polarity 极性polarizability 极化率polarization 极化polarization analysis 偏光解析polarization capacity 极化额polarization colorimeter 偏光比色计polarization curve 极化曲线polarization potential 极化电势polarization resistance 极化阻力polarized light 偏光polarizer 起偏器polarizing microscope 偏光显微镜polarogram 极谱图polarograph 极谱仪polarographic analysis 极谱分析polarographic cell 极谱池polarographic maximum 极谱极大polarographic wave 极谱波polarography 极谱法pole 极polishing 磨光pollution 沾污pollution load 污染负荷polonium 钋poly 聚polyacid 缩多酸polyacidic base 多价碱polyacrylamide 聚丙烯酰胺polyacrylate 聚丙烯酸酯polyacrylic acid 聚丙烯酸polyacrylonitrile 聚丙烯腈polyaddition reaction 加聚合反应polyalcohol 多元醇polyallomer 聚异质同晶体polyamide 聚酰胺polyamino acid 聚氨基酸polyampholyte 聚两性电解质polyatom 多原子polyatomic molecule 多原子分子polyazo dye 多偶氮染料polybasic acid 多元酸polybutadiene 聚丁二烯polybutadiene rubber 聚丁二烯橡胶polycarbonate 聚碳酸酯polychloroprene 聚氯丁二烯polycondensate 缩聚物polycondensation 缩聚polycrystal 多晶体polycyclic 多环的polycyclic compound 多环化合物polycyclic hydrocarbon 多环烃polydisperse sol 多分散胶polydispersity 多分散性polyelectrolyte 聚合电解质polyene 多烯polyester 聚酯polyester fiber 聚酯纤维polyester resin 聚酯尸polyether 聚醚polyethylene 聚乙烯polyethylene glycol 聚乙二醇polyethylene oxide 聚氧化乙烯polyethylene terephthalate 聚乙烯对苯二甲酸酯polyformaldehyde 聚甲醛polyfunctionality 多功能性polyglycol 聚乙二醇polyhalide 多卤化物polyhalogenide 多卤化物polyhexamethylene adipamide 聚己二酰己二胺polyhydric alcohol 多元醇polyisobutylene 聚异丁烯polyisoprene 聚异戊二烯polymer 聚合物polymer analogue 聚合物系类polymer blend 共混聚合物polymer gasoline 聚合汽油polymer homologue 同系聚合物polymer isomer 聚合物异构体polymeric plasticizer 高分子增塑剂polymerization 聚合polymerization accelerator 聚合促进剂polymerization degree 聚合度polymerization inhibitor 聚合抑制剂polymerization initiator 聚合引发剂polymerization retarder 聚合抑制剂polymerized oil 聚合油polymery 聚合现象polymethacrylate 聚甲基丙烯酸酯polymethyl methacrylate 聚甲基丙烯酸甲酯polymethylene 聚甲烯polymorphic transition 多形转变polymorphism 多形现象polynaphthene 多环烷polynitroethylene 聚硝基乙烯polynuclear complex 多核配合物polynuclear hydrocarbon 多环烃polynucleotide 多核甙酸polyolefin 聚烯烃polyolefine 聚烯烃polyoxyethylene 聚乙二醇polyoxymethylene 聚氧化甲烯polypeptide 多肽polyphase equilibrium 多相平衡polyphenol 多元酚polyphosphate 多聚磷酸酯polypropylene 聚丙烯polypropylene oxide 聚环氧丙烷polyprotic base 多价碱polysaccharide 多糖polystyrene 聚苯乙烯polystyrol 聚苯乙烯polysulfide 多硫化合物polysulfide rubber 聚硫橡胶polysulfonamide 聚磺酰胺polysulfone 聚砜polyterpene 聚萜烯polytetrafluoroethylene 聚四氟乙烯polythene 聚乙烯polythionic acid 连多硫酸polythiourea 聚硫脲polyurea 聚脲polyurethane 聚氨酯polyurethane foam 聚氨酯泡沫体polyurethane resin 聚氨酯尸polyvinyl acetate 聚醋酸乙烯酯polyvinyl alcohol 聚乙烯醇polyvinyl butyral 聚乙烯醇缩丁醛polyvinyl carbazole 聚乙烯咔唑polyvinyl chloride 聚氯乙烯polyvinyl chloroacetate 聚氯醋酸乙烯酯polyvinyl ether 聚乙烯醚polyvinyl fluoride 聚氟乙烯polyvinylamine 聚乙烯胺poppy seed oil 罂粟油population 群体population inversion 粒子数反转porcelain 瓷器porcelain clay 瓷土porcelain crucible 瓷坩埚porcelain earth 瓷土porcelain enamel 搪瓷porcelain glaze 瓷釉porcelain mortar 瓷乳钵pore 微孔porosity 多孔性porous ion exchange resin 多孔离子交换尸porous pot 素瓷器素烧瓶porphin 卟吩porphyrin 卟啉portland cement 波特兰水泥position representation 位置表象positional isomer 位置异构物positive catalyst 正催化剂positive displacement meter 正排量计positive displacement pump 正排量泵positive electrode 阳电极positive ion 阳离子positive lens 会聚透镜positive maximum 正极大positive plate 阳极板positive valency 正化合价positron 阳电子postignition 后点火postprecipitation 后沉淀pot 罐pot life 可用时间potash 草碱potash alum 茂potash bulb 钾球potash fusion 钾熔化potash glass 钾玻璃potash lye 钾碱液potash mica 钾云母potash soap 钾皂potassic fertilizer 钾肥料potassium 钾potassium acetate 醋酸钾potassium alum 茂potassium aluminate 铝酸钾potassium antimonyl tartrate 酒石酸氧锑钾potassium arsenate 砷酸钾potassium arsenite 亚砷酸钾potassium bicarbonate 碳酸氢钾potassium bisulfate 硫酸氢钾potassium bisulfite 亚硫酸氢钾potassium bromate 溴酸钾potassium bromide 溴化钾potassium carbonate 碳酸钾potassium chlorate 氯酸钾potassium chloride 氯化钾potassium chromate 铬酸钾potassium dichromate 重铬酸钾potassium dihydrogenphosphate 磷酸二氢钾potassium feldspar 钾长石potassium ferricyanide 铁氰化钾potassium ferrocyanide 亚铁氰化钾potassium fluoride 氟化钾potassium hexacyanoferrate 亚铁氰化钾potassium hydrogen oxalate 草酸氢钾potassium hydrogen phthalate 氢酞酸钾potassium hydroxide 氢氧化钾potassium hypochlorite 次氯酸钾potassium iodate 碘酸钾potassium iodide 碘化钾potassium nitrate 硝酸钾potassium nitrite 亚硝酸钾potassium perchlorate 高氯酸钾potassium periodate 高碘酸钾potassium permanganate 过锰酸钾potassium peroxodisulfate 过硫酸钾potassium persulfate 过硫酸钾potassium phosphate 磷酸钾potassium polysulfide 多硫化钾potassium primary phosphate 磷酸二氢钾potassium pyroantimonate 焦锑酸钾potassium pyrophosphate 焦磷酸钾potassium pyrosulfate 焦硫酸钾potassium rhodanide 硫氰酸钾potassium silicate 硅酸钾potassium sodium carbonate 碳酸钠钾potassium sodium tartrate 罗谢尔盐potassium sulfate 硫酸钾potassium sulfide 硫化钾potassium sulfite 亚硫酸钾potassium tartrate 酒石酸钾potassium thiocyanate 硫氰酸钾potassium thiosulfate 硫代硫酸钾potassium xanthate 黄原酸钾potato starch 马铃薯淀粉potential 势potential barrier 势垒potential difference 电势差potential energy 位能potential gradient 电势梯度potential well 势阱potentiometer 电势计potentiometric analysis 电势分析potentiometric cell 电位滴定池potentiometric titration 电势滴定potentiostatic electrolysis 静电位电解potter's clay 塑粘上pottery 陶器potting 浇灌pour point 怜点pour point depressant 降凝剂powder 粉powder metallurgy 粉末冶金powdered catalyst 粉状催化剂powdered coal 粉煤powdery yeast 粉状酵母power 力power consumption 功率消耗power factor 功率因数pozzolanic cement 火山灰水泥practical units 实用单位prandtl number 普朗特数praseodymium 镨praseodymium acetate 醋酸镨praseodymium bromate 溴酸镨praseodymium bromide 溴化镨praseodymium carbonate 碳酸镨praseodymium chloride 氯化镨praseodymium hydroxide 氢氧化镨praseodymium molybdate 钼酸镨praseodymium nitrate 硝酸镨praseodymium oxalate 草酸镨praseodymium oxychloride 氯氧化镨praseodymium selenate 硒酸镨praseodymium sesquioxide 二氧化二镨praseodymium sulfate 硫酸镨praseodymium sulfide 硫化镨precious metal 贵金属precious stone 宝石precipitability 沉淀性precipitant 沉淀剂precipitate 沉淀物precipitated barium carbonate 沉淀碳酸钡precipitated sulfur 沉淀硫precipitating agent 沉淀剂precipitation 沉淀;降水precipitation agent 沉淀剂precipitation analysis 沉淀分析precipitation membrane 沉淀膜precipitation reaction 沉降反应precipitation titration 沉淀滴定precipitation value 沉淀值precipitator 沉淀器precision 精度precision balance 精密天平precision instrument 精密仪器precleaning 预净化precooling 预冷却precure 早期硫化precursor 前驱物质predissociation 预离解predrying 预干燥pregnenolone 孕烯醇酮preheater 预热器preheating 预热preheating furnace 预热炉preheating oven 预热炉preliminary cleaning 预净化preliminary drying 预干燥preparation 制法preparation of a surface 表面处理preparative gas chromatography 制备级气相色谱法prepared paint 低涂料prepolymer 预聚合物preservation 保存preservatives 保存剂preserve hydrogen with rare earths 用稀土金属储存氢press 压机press cake 滤饼press cure 加压硫化press filter 压滤机press vulcanization 加压硫化pressed glass 压制玻璃pressed yeast 压缩酵母pressing 压制pressure 压力pressure base factor 基压系数pressure distillation 加压蒸馏pressure filtration 加压过滤pressure gage 压力计pressure loss 压力损失pressure medium 压力介质pressure regulator 压力第器pressure sensitive adhesive 压敏粘着剂pressure sensitive dye 压敏色素pressure still 加压蒸馏器pressure tank 压力罐pretreatment 预处理prevulcanization 早期硫化primary air 一次空气primary alcohol 伯醇primary amine 伯胺primary carbon atom 伯碳原子primary cell 原电池primary phase 初晶相primary salt 一代盐primary winding 初级线圈prime coat 底涂primer 底层涂料primidone 普里米酮priming coat 底涂priming paint 底层涂料priming tube 雷管primitive cell 初基胞primitive lattice 初基点阵principal axis of inertia 惯性轴principal component 知组分principal fermentation 知发酵酌principal quantum number 挚子数principal reaction 知反应principal series 值列principal valence 汁子价principle of corresponding states对应状态原理principle of energy dissipation 能量耗散原理principle of least action 最小酌原理principle of maximum overlapping最大重迭原则principle of superposition 迭加原理prins reaction 普林斯反应printing 印刷printing ink 印刷墨printing paper 印刷纸prism 棱镜prism for infrared ray 红外线棱镜prism spectrograph 棱镜光谱仪prismatic spectrum 棱镜光谱pristane 姥鲛烷probability 概率probability amplitude 概率幅probability density 概率密度probability distribution 概率分布probability space 概率空间probable error 概率误差procainamide 普鲁卡因胺procaine 普鲁卡因procaine base 普鲁卡因碱process 工程process analyzer 工程分析计process monitoring 工程监视process steam 加工蒸汽process variable 工艺变量processing 加工processing aid of textile 织物加工助剂producer 发生炉producer gas 发生炉煤气producer gas reaction 发生炉气体反应product 产品product of distillation 蒸馏产物production 生产production of pairs 正负电子对产生proflavine 前黄素progesterone 孕酮prolactin 促乳泌素prolamin 醇溶朊prolidase 脯肽酶proline 脯氨酸promazine 普马嗪promedol 二甲哌替啶promethazine 普鲁米近promethium 钜prominence 日珥promotor 促进剂pronamide 拿草特propadiene 丙二烯propagation 增长反应propagation rate 传播速率propanal 丙醛propane 丙烷propanoic acid 丙酸propanol 丙醇propargyl alcohol 炔丙醇propargyl bromide 炔丙基溴propargylic acid 丙炔酸propeller 螺旋桨propeller agitator 螺旋桨式搅拌器propeller stirrer 螺旋桨式搅拌器propene 丙烯proper value 本盏proper vibration 固有振动propiolic acid 丙炔酸propionaldehyde 丙醛propionamide 丙酰胺propionic acid 丙酸propionic anhydride 丙酸酐propionitrile 丙腈propiophenone 苯丙酮propolis 蜂巢腊胶proportion 比例proportional counter 正比计数管proportional intensification 比例加强proportional limit 比例极限proportional reduction 比例缩减proportioning pump 计量泵propyl acetate 醋酸丙酯propyl alcohol 丙醇propyl aldehyde 丙醛propyl bromide 丙基溴propyl chloride 丙基氯propyl gallate 没食子酸丙酯propyl mercaptan 丙硫醇propyl propionate 丙酸丙酯propyl sulfide 二丙硫propylamine 丙胺propylbenzene 丙基苯propylene 丙烯propylene glycol 丙二醇propylene oxide 环氧丙烷propylidene 亚丙烷propyliodone 丙碘酮propylthiouracil 丙硫氧嘧啶propyne 丙炔prosthetic group 辅基protactinium 镤protamine 精蛋白protease 朊酶protease inhibitor 蛋白酶抑制剂protection 保护protective action 保护酌protective agent 保护剂protective coating 保护涂层protective colloid 保护胶体protective glass 保护玻璃protective material 保护剂protective number 保护量protein 蛋白质protein biosynthesis 蛋白质的生合成protein fiber 蛋白质纤维protein metabolism 蛋白质代谢protein plastic 蛋白质塑料protein refractometer 蛋白折射计protein wave 蛋白波proteolysis 蛋白质水解proteolytic enzyme 蛋白水解酶proteose 朊间质prothoate 发果prothrombin 凝血酶原protic solvent 质子性溶剂protium 氕protocatechuic acid 原儿茶酸protolysis 光解酌proton 质子。

Unit 1 Chemi‎c al Indus‎t ry化学工业1.Origi‎n s of the Chemi‎c al Indus‎t ryAltho‎u gh the use of chemi‎c als dates‎back to the ancie‎n t civil‎i zati‎o ns, the evolu‎t ion of what we know as the moder‎n chemi‎c al indus‎t ry start‎e d much more recen‎t ly. It may be consi‎d ered‎to have begun‎durin‎g the Indus‎t rial‎Revol‎u tion‎, about‎1800, and devel‎o ped to provi‎d e chemi‎c als roe use by other‎indus‎t ries‎. Examp‎l es are alkal‎i for soapm‎a king‎, bleac‎h ing powde‎r for cotto‎n, and silic‎a and sodiu‎m carbo‎n ate for glass‎m akin‎g. It will be noted‎that these‎are all inorg‎a nic chemi‎c als. The organ‎i c chemi‎c als indus‎t ry start‎e d in the 1860s‎with the explo‎i tati‎o n of Willi‎a m Henry‎Perki‎n‘s‎disco‎v ery if the first‎synth‎e tic dyest‎u ff—mauve‎. At the start‎of the twent‎i eth centu‎r y the empha‎s is on resea‎r ch on the appli‎e d aspec‎t s of chemi‎s try in Germa‎n y had paid off hands‎o mely‎, and by 1914 had resul‎t ed in the Germa‎n chemi‎c al indus‎t ry havin‎g 75% of the world‎marke‎t in chemi‎c als. This was based‎on the disco‎v ery of new dyest‎u ffs plus the devel‎o pmen‎t of both the conta‎c t proce‎s s for sulph‎u ric acid and the Haber‎proce‎s s for ammon‎i a. The later‎requi‎r ed a major‎techn‎o logi‎c al break‎t hrou‎g h that of being‎able to carry‎out chemi‎c al react‎i ons under‎condi‎t ions‎of very high press‎u re for the first‎time. The exper‎i ence‎gaine‎d with this was to stand‎Germa‎n y in good stead‎, parti‎c ular‎l y with the rapid‎l y incre‎a sed deman‎d for nitro‎g en-based‎compo‎u nds (ammon‎i um salts‎for ferti‎l izer‎s and nitri‎c acid for explo‎s ives‎manuf‎a ctur‎e) with the outbr‎e ak of world‎warⅠin 1914. This initi‎a ted profo‎u nd chang‎e s which‎conti‎n ued durin‎g the inter‎-war years‎(1918-1939).1．化学工业的‎起源尽管化学品‎的使用可以‎追溯到古代‎文明时代，我们所谓的‎现代化学工‎业的发展却‎是非常近代‎（才开始的）。

化学及化工专业词汇英语翻译(D-I) daguerreotype 达盖尔银版daily output 日产量dalton's law 道尔顿定律daltonide 道尔顿式化合物dammar 达玛尸dammar varnish 达玛胶漆damper 减震器daniell cell 丹聂耳电池dark color 深色dark line 暗线dark plaster 黑石膏dark reaction 暗反应database 资料库dative bond 配价键daturine 天仙子胺dawsom gas 半水煤气deacetylation 脱乙酰基deacidification 脱酸化deacon process 迪肯制氯法deactivation 去活dead burning 烧结dead burnt gypsum 烧石膏dead gold 消光金dead roasting 完全焙烧dead space 死空间dead time 无感时间deaeration 除汽deaerator 除汽器脱泡器dealkylation 脱烃酌deamidase 脱酰氨基酶deaminase 脱氨酶deamination 脱氨基酌deasphalting 脱沥青debenzolized oil 脱苯油deblooming 脱荧光debris 碎屑debromination 脱溴debye photograph 德拜摄影debye scherrer's method 德拜谢乐法debye's characteristic temperature 德拜特性温度decaborane 癸硼烷decahydronaphthalene 十氢化萘decalcification 脱钙decalin 十氢化萘decane 正十烷decanoic acid 癸酸decantation 倾析decanter 倾析器decarbonization 脱碳decarboxylation 脱羧酌decarburation 脱碳decatizing 蒸呢decay 衰变decay constant 衰变常数decay curve 衰变曲线dechlorinating agent 脱氯剂dechlorination 脱氯decinormal 十分之当量的decoction 煎decolorimeter 去色力计decoloring 脱色decolorization 脱色decolorizer 脱色剂decolorizing agent 脱色剂decolorizing carbon 脱色炭decomposition 分解;腐败decomposition heat 分解热decomposition point 分解点decomposition pressure 分解压力decomposition product 分解产物decomposition reaction 分解反应decomposition voltage 分解电压decontaminate 净化decontamination 消除污染decontamination agent 去污剂decortication 剥外皮decyl alcohol 癸醇decyl mercaptan 癸硫醇decylamine 癸胺decylene 癸烯decylic acid 癸酸decyltrichlorosilane 癸基三氯硅烷deep freeze refrigeration plant 深冷设备deep freezer 深冷器deep refrigeration 深度冷冻defecation 澄清defensive protein 防御蛋白质deferrization 除缺definite composition 一定组成deflagration 暴燃deflocculant 反絮凝剂deflocculating agent 反絮凝剂deflocculation 反絮凝defoamer 去沫剂defoaming agent 去沫剂deformation 变形deformation vibration 形变振动degasification 除气degasifier 除气器degassing 除气degeneracy temperature 简并温度degenerate rearrangement 退化重排degeneration 退化degradation 递降degras 油余物degreaser 脱脂器degreasing 脱脂degreasing agent 脱脂剂degreasing equipment 脱脂器degree of association 连带度degree of branching 支化度degree of crosslinking 交联度degree of dissociation 离解度degree of electrolytic dissociation 电离度degree of fineness 细度degree of freedom 自由度degree of hydrolysis 水解度degree of ionization 电离度degree of orientation 取向度degree of polycondensation 缩聚度degree of polymerization 聚合度degree of saturation 饱和度degree of superheat 过热度degree of swelling 溶胀度degree of tannage 度degree of vacuum 真空度degree of vulcanization 硫化度degumming 脱胶dehalogenation 脱卤酌dehumidifier 减湿器dehydrase 脱水酶dehydrated alcohol 无水酒精dehydrated castor oil 脱水蓖麻油dehydrating agent 脱水剂dehydrating gasoline 脱水汽油dehydrating tower 脱水塔dehydration 脱水dehydrator 脱水器dehydrochlorination 脱氯化氢dehydrocyclization 脱氢环化dehydrogenase 脱氢酶dehydrogenation 脱氢deicer 除冰剂deicing agent 除冰剂deionization 消电离deionized water 脱离子水delayed action 延迟酌delayed coagulation 缓凝delayed coking 延迟焦化delayed elasticity 延迟弹性delayed ignition 延迟点火delayed reaction 迟缓反应delignification 去木质素deliming 脱灰deliquescence 潮解delivery volume 排出容积delocalization energy 非定域能delphinidin 花翠素delphinine 翠雀宁苷delta metal 合金delustering 消光delustering agent 消光剂delustrant 消光剂demasking 解蔽demethylation 脱甲基demijohn 酸瓶demineralization 脱盐demineralizer 脱盐器demulsification 反乳化demulsification number 反乳化值demulsifier 反乳化剂denaturant 变性剂denaturation 变性denatured alcohol 变性酒精denatured protein 变性蛋白质denatured state 变性状态dendritic crystal 枝状晶体denier 旦尼尔denitration 脱硝denitrification 脱氮densimeter 密度计densimetric titration 密度滴定densitometer 密度计density 密度density bottle 比重瓶density gradient centrifugation 密度梯度离心法dental alloy 补齿合金dental cement 补齿水泥dental plaster 牙科石膏deobstruent 泻剂deodorant 脱嗅剂deodorization 脱嗅deodorizer 除嗅器deodorizing 脱嗅deoiling 脱油deoxidant 脱氧剂deoxidation 脱氧deoxidizer 脱氧剂deoxidizing agent 脱氧剂deoxy sugar 脱氧糖deoxyalizarin 去氧茜素deoxycorticosterone 去氧皮质甾酮deoxymannose 脱氧甘露糖deoxyribonuclease 脱氧核糖核酸酶deoxyribonucleic acid 脱氧核糖核酸deoxyribose 脱氧核糖dephlegmation 部分冷凝dephlegmator 分馏柱depilating agent 脱毛剂depilation 脱毛depilatory 脱毛剂depolarization 消偏振酌depolarization degree 去偏光度depolarizer 去极化剂depolymerization 解聚depolymerized rubber 解聚橡胶depolymerizing agent 解聚剂deposit 矿床;沉淀物deposition potential 沉积电位depot 贮藏物质depressimeter 冰点降低计depression of vapor pressure 蒸汽压下降depressor 抑制剂depropanizer 脱丙烷塔depropanizing column 脱丙烷塔deproteinization 脱蛋白质depside 缩酚酸depsidone 缩酚酸环醚depth type filtration 深度过滤derby red 铬红derivative 衍生物derivative polarography 微分极谱法derivative thermometric titration 微分温度滴定derived protein 衍生蛋白质derived unit 导出单位derris 鱼藤酮desalted water 脱盐水desalting 脱盐descending method 下行法desensitization 减敏现象desensitizer 减感剂desensitizing dye 减感染料desiccant 干燥剂desiccating agent 干燥剂desiccation 干燥desiccator 干燥器design of experiments 实验设计desilication 硅氧淋失酌desilverization 脱银desilylation 脱甲硅基desired value 预定值desizing agent 退浆剂desmine 束沸石desmo enzyme 不溶酶desmolase 碳链分解酶desmotrope 稳变异构物desmotropism 稳变异构性desolvation 去溶剂化desorption 解吸附destruction 破坏destructive distillation 分解蒸馏destructive distillation of wood 木材干馏desulfurating agent 脱硫剂desulfuration 脱硫desulfurizer 脱硫器deswelling 消溶胀detection 检验detection coefficient 检波系数detection limit 探测极限detector 检验器detergent 清洁剂deterioration 降解determinant 行列式determination 测定determination of molecular weight 分子量测定detonating cord 引爆线detonating fuse 引爆线detonating gas 爆鸣气detonating primer 雷管detonation 爆震detonation velocity 爆震速度detonator 雷管deuteration 氘化deuterium 氘deuterium oxide 氧化氘deuteron 氘核deuton 氘核devarda's alloy 迪氏铝铜锌合金developed dye 显色染料developer 显影剂developing agent 显影剂developing bath 显色浴developing out paper 显相纸developing solution 显影液development 显影development center 显影中心development factor 显影因素deviation 偏差deville furnace 德威尔炉devitrification 失透devulcanization 脱硫devulcanizer 脱硫器devulcanizing agent 脱硫剂dew point 露点dew point boundary 露点边界dew point depression 露点降低dew point pressure 露点压力dewar flask 杜瓦瓶dewar vessel 杜瓦瓶dewaxing 脱蜡dextran 葡萄聚糖dextrin 糊精dextrorotatory 右旋性dextrorotatory compound 右旋化合物dextrose 右旋糖diabase 辉绿岩diacetate 二醋酸盐diacetin 二醋精diacetone 双丙酮diacetone alcohol 双丙酮醇diacetyl 双乙酰diacetylene 丁二炔diacetylmorphine 二乙酰吗啡diacid base 二元碱diad 二价元素diagometer 电导计diagram 图表dialdehyde 二醛dialkyl sulfate 二烷基硫酸盐dialkylarsine 二烃基胂dialkylate 二烃化合物diallyl 联丙烯diallyl phthalate 己二烯酞酸酯diallyl sulfide 烯丙基硫醚dialuric acid 径尿酸dialysate 透析液dialysis 透析dialytic coefficient 可透系数dialyzator 渗析器dialyzer 渗析器diamagnetic substance 反磁物质diamagnetism 反磁性diamide 二酰胺diamine 二元胺diamine oxidase 二胺氧化酶diaminobenzene 二氨基苯diaminodiphenyl 联苯胺diaminophenol 二氨基苯酚diaminophenol hydrochloride 盐酸二氨基苯酚diamond 金刚石diamyl ether 二戊醚diamyl phenol 二戊基酚diamylamine 二戊胺dianisidine 邻联茴香胺diaphanometer 透闷diaphorase 心肌黄酶diaphragm 隔膜diaphragm cell 隔膜电解槽diaphragm manometer 膜片压力计diaphragm process 隔膜法diaphragm pump 隔膜泵diaphragm type pressure gauge 膜片压力计diapositive film 反底片diarsine 联胂diarylamine 二芳基胺diasolysis 溶胶渗析diaspore 水铝石diastase 淀粉糖化酶diastatic enzyme 糖化酶diastatic power 糖化力diastereoisomer 非对映异构体diastereoisomerism 非对映异构性diastereomer 非对映异构体diastimeter 距离测定计diathermancy 透热性diatom 硅藻diatom earth 硅藻土diatomaceous earth carrier 硅藻土载体diatomaceous earth support 硅藻土载体diatomic molecule 二原子分子diatomite 硅藻土diazinon 地亚农diazo reaction 重氮反应diazoamino compound 重氮氨基化合物diazoaminobenzene 重氮胺基苯diazobenzeneanilide 重氮胺基苯diazocompound 重氮化合物diazole 二唑diazomethane 重氮甲烷diazonium 重氮diazonium salt 重氮盐diazotate 重氮酸盐diazotation 重氮化diazotization 重氮化diazotization titration 重氮化滴定diazotype 重氮印相法dibasic 二元的dibasic acid 二元酸dibazol 地巴唑dibenzyl 二苄基diborane 乙硼烷dication 双阳离子dichlone 二氯萘醌dichloramine 二氮胺dichloride 二氯化物dichloroacetic acid 二氯醋酸dichlorobenzene 二氯苯dichloroethane 二氯乙烷dichloroethyl ether 二氯乙醚dichlorofluoromethane 二氯氟甲烷dichloromethane 二氯甲烷dichloropentane 二氯戊烷dichroism 二向色性dichromate 重铬酸盐dichromatic dye 双色染料dicyan 氰dicyandiamide 氰基胍dicyclohexyl adipate 己二酸二环己酯dicyclohexyl phthalate 酞酸二环己酯dicyclohexylamine 二环己基胺didecyl adipate 己二酸二癸基酯didecyl ether 二癸基醚didecyl phthalate 邻苯二甲酸二癸酯didymium 钕镨混合物die casting 压模铸造dieldrin 狄氏剂dielectric 电介质dielectric breakdown 介质哗dielectric constant 介电常数dielectric drying 高频烘烤dielectric loss 介电损耗dielectric polarization 电介质极化dielectrometer 介质测试仪dielectrometry 介电滴定diels alder reaction 二烯合成diene 二烯diene polymerization 二烯聚合diene synthesis 二烯合成diene value 二烯值dienestrol 双烯雌酚diesel engine 柴油机diesel fuel 柴油机燃料diesel oil 柴油diesterase 二酯酶diethanolamine 二乙醇胺diethyl ether 乙醚diethyl ketone 二乙酮diethyl maleate 马来酸二乙酯diethyl malonate 丙二酸二乙酯diethyl phenyl urea 二乙基苯基脲diethyl phthalate 酞酸二乙酯diethyl succinate 丁二酸二乙酯diethyl sulfate 硫酸二乙酯diethyl tartrate 酒石酸二乙酯diethyl thiourea 二乙硫脲diethylamine 二乙胺diethylbenzene 二乙苯diethylene glycol 二甘醇diethylurea 二乙脲differential chemical reactor 微分化学反应器differential equation 微分方程式differential extraction 微分萃取differential flotation 优先浮选differential flowmeter 差动量计differential manometer 差示压力计differential method 差动法differential polarography 差示极谱法differential refractometer 差示折光计differential solvent 差示溶剂differential staining 鉴别染色differential thermal analysis 示差热分析differential thermal analyzer 差热分析仪differential titration 差示滴定diffraction 衍射diffraction grating 衍射栅diffraction spectrum 衍射光谱diffusate 渗出物diffuse scattering 漫散射diffuser 扩散器diffusing glass 扩散玻璃diffusion 扩散diffusion analysis 扩散系数分析diffusion coefficient 扩散系数diffusion current 扩散电流diffusion heat 扩散热diffusion ion 扩散离子diffusion layer 扩散层diffusion potential 扩散电势diffusion process 扩散过程diffusion pump 扩散泵diffusion reaction 扩散反应diffusion transfer process 扩散转印法diffusion velocity 扩散速度diffusiophoresis 扩散电泳diffusivity 扩散率diffusivity analysis 扩散系数分析diformyl 乙二醛digallic acid 双没食子酸digester 蒸煮器digestibility 消化率digestion 消化;煮解digestive enzyme 消化酶digitalin 狄吉他林digitalis 毛地黄digitonin 毛地黄皂苷digitoxigenin 洋地黄毒苷元digitoxin 狄吉妥辛diglycolic acid 二甘醇酸digoxin 地谷新dihexyl 十二烷dihydrate 二水合物dihydric alcohol 二羟醇dihydrostreptomycin 二氢链霉素dihydroxyacetone 二羟基丙酮dihydroxyacetophenone 二羟基苯乙酮diiodomethane 二碘甲烷diiodothyrosine 二碘酪氨酸diisoamyl phthalate 邻苯二酸二异戊酯diisobutyl adipate 己二酸二异丁酯diisobutyl ketone 二异丁基甲酮diisobutylamine 二异丁胺diisobutylene 二异丁烯diisocyanate 二异氰酸盐diisodecyl adipate 己二酸二异癸酯diisodecyl phthalate 酞酸二异癸酯diisooctyl adipate 己酸二异辛酯diisooctyl azelate 壬二酸二异辛酯diisooctyl phthalate 邻苯二酸二异辛酯diisooctyl sebacate 癸二酸二异辛酯diisopropanolamine 二异丙醇胺diisopropylamine 二异丙基胺diketene 双烯酮diketone 二酮dilactone 双内酯dilatancy 膨胀性dilatation 膨胀dilatometer 膨胀计dilatometric curve 膨胀曲线dilatometry 膨胀测定法dilaurin 二月桂精diluent 稀释剂dilute acid 稀酸dilute solution 稀溶液dilute sulphuric acid 稀硫酸dilution 稀释dilution law 稀释律dilution refrigeration 稀释冷冻dimedrole 地麦德洛尔dimension 量纲dimensional analysis 量纲分析dimensional stability 尺寸恒定性dimensionless number 无因次数dimer 二聚物dimerization 二聚酌dimethyl ether 二甲醚dimethyl phthalate 酞酸二甲酯dimethyl sebacate 癸二酸二甲酯dimethyl sulfate 硫酸二甲酯dimethyl sulfoxide 二甲亚砜dimethyl terephthalate 对酞酸二甲酯dimethylacetal 二甲基缩醛dimethylacetamide 二甲基乙酰胺dimethylamine 二甲胺dimethylaniline 二甲基苯胺dimethylarsine 二甲胂dimethylbenzene 二甲苯dimethylbutadiene rubber 二甲基丁二烯橡胶dimethylether 二甲基乙醚dimethylformamide 二甲基甲酰胺dimethylhydrazine 二甲基肼dimethylolurea 二羟甲基脲dimethylpentane 二甲基成烷dimethylpyridine 卢剔啶dimethylsulphoxide 二甲亚砜dimethylterephthalate 二甲基对酞酸盐dimethylthiophene 二甲基噻吩dimorphism 二形dinas brick 硅酸盐砖dinitrite 双亚硝酸盐dinitrobenzene 二硝基苯dinitroglycerine 二硝基甘油dinitronaphthalene 二硝基萘dinitrophenol 二硝基苯酚dinitrotoluene 二硝基甲苯dinonyl phenol 二壬基苯酚dinonyl phthalate 酞酸二壬酯dioctyl ether 二辛醚dioctyl fumarate 反式丁烯二酸二辛酯dioctyl phthalate 酞酸二辛酯dioctyl sebacate 癸二酸二辛酯diol 二醇diolefin 二烯diolein 二油精diorite 闪绿岩diose 双糖diosgenine 地奥甙元dioxane 二氧六环dioxide 二氧化物dioxide peroxide 二氧化氯dioxindole 二氧吲哚dioxolane 二氧戊环dip dyeing 提浸染色dip oil 浸洗油dipentene 二戊烯dipeptidase 二肽酶dipeptide 二肽diphenic acid 联苯甲酸diphenol 联苯酚diphenyl 联二苯diphenyl carbonate 碳酸二苯酯diphenyl ether 二苯醚diphenyl oxide 二苯基氧diphenyl phthalate 酞酸二苯酯diphenyl urea 碳酰替diphenylacetonitrile 二苯基乙腈diphenylamine 二苯胺diphenylbenzidine 二苯联苯胺diphenylcarbinol 二苯基甲醇diphenylene oxide 联苯抱氧diphenylenemethane 芴diphenylguanidine 二苯胍diphenylhydrazine 二苯肼diphenylketone 二苯甲酮diphenylmethane 二苯甲烷diphenylurea 二苯脲diphosgene 双光气dipolar ion 偶极离子dipole 偶极子dipole molecule 偶极分子dipole moment 偶极矩dipping 浸渍dipping process 浸渍过程dipping refractometer 浸液折射计dipping varnish 浸渍清漆dipropyl ketone 二丙基甲酮dipropyl phthalate 酞酸二丙酯dipropyl sulfide 二丙硫dipropylene glycol 二丙二醇dipyridyl 联吡啶direct color 直接染料direct cotton dye 直接染棉染料direct current 直流direct dye 直接染料direct effect 直接效应direct fertilizer 直接肥料direct fired evaporator 直烧蒸发器direct pressure 定向压力direct reduction 直接还原direct steam 直接蒸汽direct titration 直接滴定direct writing oscillograph 直接记录式示波器direction coefficient 方向系数disaccharide 二糖disaggregation 解聚disazo dye 双偶氮染料disc crusher 盘式破碎机disc electrophoresis 圆盘电泳discharge 放电discharge hopper 卸料斗discharge liquor 排出液discharge rate 放电率discharge test 拔染试验discharge tube 放电管discharging agent 拔染剂discharging hopper 卸料斗discoloration 变色discontinuous operation 周期性操作discriminant analysis 判别分析disilane 乙硅烷disilicate 二硅酸盐disinfectant 消毒剂disinfection 消毒disinfector 消毒器disintegration 衰变disintegration constant 衰变常数disintegrator 粉碎机disk crusher 盘式破碎机disk electrophoresis 圆盘电泳disk type rotary vacuum filter 圆盘式旋转真空过滤器disk valve 圆板阀dislocation 错位dismutation 歧化过程disodium hydrogen arsenate 砷酸氢二钠disodium hydrogen phosphate 磷酸氢二钠dispensation 配方dispersant 分散剂disperse dye 分散染料dispersed material 分散质dispersed phase 分散相dispersed system 分散系dispersing agent 分散剂dispersion 分散dispersion force 分散力dispersion medium 分散介质dispersive power 分散本领dispersoid 分散胶体displacement 变位displacement chromatography 置换色谱法displacement law 位移定律displacement reaction 取代反应disproportion 不均衡disproportionation 歧化dissimilation 异化酌dissipation of energy 能量耗散dissipative structure 耗散结构dissociation 解离dissociation constant 离解常数dissociation energy 离解能dissociation pressure 离解压dissolution 溶解dissolved oxygen 溶解氧dissolving power 溶解力dissymmetry 非对称distance control 遥控distearin 二硬脂精distemper 水浆涂料distillate 馏出物distillation 蒸馏distillation apparatus 蒸馏装置distillation column 蒸馏塔distillation curve 蒸馏曲线distillation flask 蒸馏瓶distillation loss 蒸馏损失distillation still 蒸馏釜distillation tower 蒸馏塔distilled water 蒸馏水distributed load 分布负载distribution 分配distribution coefficient 配分系数distribution function 配分函数distribution law 分配律distribution of molecular weight 分子量分布distribution of polymerization degree 聚合度分布disulfide 二硫化物disulfonic acid 二磺酸diterpene 双萜dithiocarbamic acid 氨荒酸dithione 二硫酮dithionic acid 连二硫酸dithiooxamide 红氨酸dithizone 双硫腙diuretic 利尿剂diuretic hormone 利尿激素diuretin 利尿素divalent metal 二价金属divalent system 二变系divinyl 二乙烯divinyl sulfone 二乙烯砜divinylbenzene 二乙烯基苯djave butter 毒雾冰草油dna polymerase dna 聚合酶dnase 脱氧核糖核酸酶docosanoic acid 廿二烷酸doctor process 铅酸钠净化处理doctor solution 博士溶液doctor treatment 铅酸钠净化处理dodecane 十二烷dodecanoic acid 正十二烷酸dodecene 十二烯dodecyl acetate 醋酸十二酯dodecyl chloride 十二基氯dodecylbenzene 十二烷苯dodecylic acid 月桂酸dodecylphenol 十二烷苯酚dolomite 白云石dolomite clinker 白云石熔结dolomite plaster 白云石灰浆domain 晶畴domestic fuel 家用燃料dominant wave length 吱长donator 供体donnan's equilibrium 道南平衡donor 供体dopamine 多巴胺dopaoxidase 多巴氧化酶dope dyeing spun dyeing 原液染色doppler effect 多普勒效应dosage 剂量dose 剂量dose equivalent 剂量当量dose rate 放射量率dosimeter 剂量计dosimetry 剂量测定double arm kneader 双叶片捏和机double bond 双键double bond isomerism 双键异构性double cone mixer 双圆锥式混合机double decomposition 复分解double decomposition reaction 复分解反应double effect evaporator 双效蒸发器double exchange interaction 双重交换相互酌double exposure 双重曝光double fluid cell 双液电池double layer 双层double melting point 双重熔点double refraction 双折射double resonance 双共振double salt 复盐double solvent refining 双溶剂精炼double weighing method 双重秤量法doublet 双重线downdraft 向下通风downspout 下导管draft 通风draft chamber 通风室drain valve 排污阀draught 通风drawing of fiber 拉伸纤维drier 干燥机drinking water 饮水drop culture 点滴培养drop reaction 点滴反应drop sulfur 粒状硫droplet formation 点滴形成dropping bottle 滴瓶dropping electrode 滴液电极dropping funnel 滴液漏斗dropping mercury electrode 滴汞电极dropping point 滴点dropwise condensation 滴状凝结drug metabolism 药物代谢酌drug resistance 药物抗性drum 辊筒drum dryer 鼓式干燥器druse 晶簇dry air cure 干热硫化dry analysis 干法分析dry area 干摩擦点dry area spot 干摩擦点dry assay 干法试金dry blending 干搀和dry box 干箱dry cell 干电池dry cleaning 干洗dry cleaning fluid 干洗铃dry coloring 干颜料dry desiccant dehydration 干态干燥剂脱水酌dry distillation 干馏dry distillation of wood 木材干馏dry dyeing 干法染色dry friction 干摩擦dry gas 干气dry gas holder 干式气柜dry heat vulcanization 干热硫化dry hole 干钻孔dry ice 固体二氧化碳dry plate 干板dry point 干点dry process 干法dry reaction 干反应dry spinning 干纺dry steam 干燥蒸气dry sterilization 干热灭菌dry tack 干粘着性dry weight 干重dry yeast 干酵母dryer 干燥机drying 干燥drying agent 干燥剂drying apparatus 干燥装置drying chamber 干燥室drying efficiency 干燥效率drying oil 干性油drying oven 干燥炉drying plant 干燥设备drying temperature 干燥温度drying time 干燥时间dual gravity valve 双比重阀duboisine 天仙子胺ductility 延性ductilometer 拉伸度仪dulcin 对乙氧基苯脲dulcitol 卫矛醇dull finish 消光dull surface 无光面dulong petit's law 杜珀二氏定律duma's method 杜马斯法duplet 电子偶duplex printing 双面复合印花durability 耐久性duralumin 硬铝durene 杜烯duriron 杜里龙高硅钢durometer 硬度计durometer hardness 硬度计硬度dust chamber 除尘器dust coal 粉煤dust collector 除尘器dust powder 木炭粉dust sampler 粉尘采样器dust separator 除尘分离器dye 染料dye laser 染料激光器dyeing 染色dyeing assistant 染色辅助剂dyeing equilibrium 染色平衡dyeing power 染色力dyeing speed 上染速度dyestuff 染料dyestuff chemistry 染料化学dynameter 倍率计dynamic equilibrium 动态平衡dynamic isomerism 动态异构性dynamic modulus 动态模量dynamic pressure 动压dynamic viscosity 动态粘度dynamics 动力学dynamite 达纳炸药dypnone 缩二苯乙酮dysprosium 镝dysprosium bromide 溴化镝dysprosium carbonate 碳酸镝dysprosium chloride 氯化镝dysprosium hydroxide 氢氧化镝dysprosium nitrate 硝酸镝dysprosium oxide 氧化镝dysprosium oxychloride 氯氧化镝dysprosium phosphate 磷酸镝dysprosium sulfate 硫酸镝dystectic mixture 高熔混合物dystectic point 高熔点e bond e 键early strength cement 早强水泥earth acids 土酸类earth color 矿物颜料earth metals 土金属earth wax 木炭earthenware 陶器earthy humus 土状腐殖质ebonite 硬橡胶ebulliometer 酒精沸点计;沸点测定器ebullioscopic constant 沸点升高常数ebullioscopic method 沸点升高法ebullition 沸腾ecdysone 蜕化素ecgonine 芽子碱echelon grating 梯式格子eclipsing effect 重叠效应economizer 省煤器eddy 涡流eddy conductivity 涡寥导性eddy current 涡电流eddy viscosity 涡脸度edeleanu process 爱德林精炼法edestin 麻仁球蛋白edge runner 轮碾机edible fat 食用脂edible oil 食用油edison storage battery 爱迪生蓄电池editcoal gas 煤气editcyclotron 回旋加速器editmetallized carbon filament 金属化碳丝editmethacrylate resin 甲基丙烯酸尸editnitroglycerin 硝化甘油editpaint film 漆膜editpotassium cyanide 氰化钾editpour point 晶出点editsteric hindrance 立体阻碍editthixotropic gel 触变胶体edittrialkyl chlorosilane 三烷基氯硅烷editwater purification unit 净水设备edman degradation technique 埃德曼降解技术effect of extension 延伸效应effective angle 有效角effective area 有效面积effective collision number 有效碰撞数effective half life 有效半衰期effective head 有效扬程effective permeability 有效渗透率effective power 有效功率effective quantum number 有效量子数effective resistance 有效抵抗effective thermal conductivity 有效热传导率effective value 有效值effervescence 发泡efficiency 效率efficiency of dust collection 除尘效率efficiency of rectification tower 精馏塔效率efflorescence 风化effluent 瘤物efflux velocity 瘤速度efflux viscometer 瘤式粘度计effusiometer 打散计effusion 喷出effusive rock 喷出岩egg albumin 卵清蛋白egg white 蛋白egg yolk 蛋黄ehrlich's reagent 欧利布试剂eicosane 廿烷eicosanoic acid 花生酸eigen energy 本哲eigenfunction 本寨数eigenvalue 本盏eikonogen 显影剂einstein bohr equation 爱因斯坦玻尔方程einstein condensation 爱因斯坦凝聚einstein diffusion equation 爱因斯坦扩散方程einstein photochemical equivalenct law 爱因斯坦光化当量定律einstein photoelectric law 爱因斯坦光电定律einstein planck law 爱因斯坦普朗克定律einstein's equation for specific heat 爱因斯坦比热方程einstein's viscosity equation 爱因斯坦粘度方程式einsteinium 锿ejector 喷射器ejector condenser 喷射式冷凝器eka cesium 类铯eka element 待寻元素eka iodine 类碘eka tantalum 类钽elaeolite 脂光石elaeometer 油脂比重计elaeosacchara 油糖剂elaidic acid 反油酸elaidin 反油酸精elaidin test 反油酸检验elaidinization 反油酸转位elastase 弹性蛋白酶elastic aftereffect 弹性后效elastic body 弹性体elastic collision 弹性碰撞elastic constant 弹性常数elastic deformation 弹性变形elastic force 弹性力elastic gum 弹性胶elastic hysteresis 弹性滞后elastic limit 弹性极限elastic medium 弹性介质elastic modulus 弹性系数elastic recovery 弹性复原elastic rubber 弹性胶elasticity 弹性elastin 弹性硬朊elastomer 弹性体elastometer 弹性计elastoviscometer 弹性粘度计elastoviscometry 弹性粘度测量法elaterometer 气体密度计elatrometry 气体密度测量法elbs reaction 埃尔布斯反应electret 驻极体electric analysis 电分析法electric arc furnace 电弧炉electric calorimeter 电热量计electric charge 电荷electric conductivity 导电率electric conductor 导体electric current 电流electric desalting 电脱盐electric detonator 电爆管electric discharge 放电electric double layer 双电层electric drying apparatus 电干燥机electric dust precipitator 电集尘器electric energy 电能electric field 电场electric furnace 电炉electric heater 电热器electric heating 电热electric insulation 电绝缘electric potential 电位electric power 电力electric precipitation 电力沉淀electric resistance 电阻electric resistance furnace 电阻炉electric resistance manometer 电阻压力计electric resistance thermometer 电阻温度计electric susceptibility 电极化率electric thermostat 电热恒温器electric welding 电焊electrical carbonization 电法炼焦electrical dispersion 电分散法electrical property 电性质electroactive substance 电活性物质electroanalysis 电分析electrocapillarity 电毛细现象electrocapillary curve 电毛细管曲线electrocast brick 电熔耐火砖electrocasted refractories 电炉熔铸耐火物electrocasting 电铸electrocatalysis 电催化酌electroceramics 电陶瓷electrochemical cell 蓄电池electrochemical corrosion 电化学腐蚀electrochemical equivalent 电化当量electrochemical industry 电化工业electrochemical passivation 电化钝化electrochemical polarization 电化极化electrochemical process 电化法electrochemical protection 电化学防腐法electrochemical reaction 电化学反应electrochemical series 电化序electrochemistry 电化学electrochromatography 电气色层法electrocoagulation 电凝聚electroconductive glass 电导玻璃electrocyclic reaction 电环化反应electrode 电极electrode potential 电极势electrode process 电极过程electrode reaction 电极反应electrodecantation 电倾析electrodeposition 电极沉积electrodeposition analysis 电沉积分析electrodialysis 电渗析electroexplosive 电起爆炸药electrofocusing 等电点聚焦electroforming 电铸electrogeochemistry 电地球化学electrogravimetric analysis 电重量分析electrohydrometry 电液体比重测量法electrokinetic phenomena 界面电动学现象electrokinetic potential 界面动电势electroluminescence 电致发光electrolysis 电解electrolyte 电解质electrolytic aluminium 电解铝electrolytic analysis 电解分析electrolytic analysis apparatus 电解分析装置electrolytic bath 电解槽electrolytic bleaching 电解漂白electrolytic cell 电解槽electrolytic cleaning 电解清洗electrolytic condenser 电解质电容器electrolytic copper 电解铜electrolytic degreasing 电解去油electrolytic dissociation 电离electrolytic dissociation constant 电离常数electrolytic extraction 电解萃取electrolytic hardening 电解硬化electrolytic oxidation 电解氧化electrolytic polarization 电解极化electrolytic polishing 电解研磨electrolytic rectifier 电解整流electrolytic reduction 电解还原electrolytic refining 电解精炼electrolytic solution 电解溶液electrolytical surface treatment 电表面处理electrolytics 电解学electromagnet 电磁铁electromagnetic field 电磁场electromagnetic flowmeter 电磁量计electromagnetic gas analyzer 电磁气分析计electromagnetic induction 电磁感应electromagnetic oscillograph 电磁式示波器electromagnetic separation 电磁分离electromagnetic separator 电磁分离器electromagnetic wave 电磁波electromerism 电子异构electrometallurgy 电冶金学electrometer 电位计electrometer tube 电表管electrometric titration 电滴定electromigration 电迁移法electromotive force 电动势electron 电子electron affinity 电子亲合势electron beam 电子束electron capture 电子俘获electron cloud 电子云electron configuration 电子构型electron density 电子密度electron diffraction 电子衍射electron donor 电子供体electron emission 电子发射electron exchange 电子交换electron exchange resin 电子交换尸electron gas 电子气electron lattice interaction 电子点阵相互酌electron microscope 电子显微镜electron orbit 电子轨道electron oxidation reduction resin 电子交换尸electron pair 电子对electron pair bond 电子对键electron probe microanalysis 电子探针微量分析electron rays 电子束electron redox resin 电子交换尸electron shell 电子壳electron spectroscopy 电子能谱术electron transfer reaction 电子转移反应electron transport 电子转移electron transport system 电子传递体系electron tube 电子管electron volt 电子伏特electronegative element 阴电性元素electronegativity 电负度electronic charge 电子电荷electronic computer 电子计算机electronic conduction 电子传导electronic friction 电子摩擦electronic galvanometer 电子管检疗electronic oscillator 电子振荡器electronic polarization 电子极化electronic self balancing type recorder 电子自动平衡记录器electronic structure of molecule 分子的电子结构electronic tube glass 真空管玻璃electronic voltmeter 电子伏特计electronics 电子学electroosmosis 电渗透electrophilic agent 亲电子试剂electrophilic reaction 亲电子反应electrophilic rearrangement 亲电子换位electrophoresis 电泳electrophoresis apparatus 电泳器electrophoretic effect 电泳效应electrophotography 电照相术electroplating 电镀electropositive element 阳电性元素electropositive potential 阳电势electroscope 验电器electrosol 电溶胶electrostatic field 静电场electrostatic induction 静电感应electrostatic potential 静电势electrostatic separator 静电选矿机electrostatic valence rule 静电价规则electrostenolysis 细孔隔膜电解electrotechnical porcelain 电瓷electrothermic industry 电热工业electrothermics 电热学electrovalence 离子价electrowinning 电解沉积element 元素elementary analysis 元素分析elementary charge 电子电荷elementary particle 基本粒子elementary reaction 基本反应elemi 榄香脂eleolite 霞石eleolite syenite 霞石正长岩eleostearic acid 桐酸elevation of boiling point 沸点升高elgin extractor 埃尔金萃取器elimination reaction 消除反应ellagic acid 花烯ellipsometry 椭圆光度法elongation percentage 伸长率eluate 洗出液eluent 洗脱液elution 洗提elution analysis 淘析分析elution constant 淋洗常数elution curve 淘析曲线elutriation 淘析elutriator 淘析器emagram 埃玛图eman 埃曼emanation 射气emerald 纯绿宝石emerald green 巴黎绿emery 金刚砂emery cloth 研磨砂布。

Unit 1 Chemical Industry化学工业1.Origins of the Chemical IndustryAlthough the use of chemicals dates back to the ancient civilizations, the evolution of what we know as the modern chemical industry started much more recently. It may be considered to have begun during the Industrial Revolution, about 1800, and developed to provide chemicals roe use by other industries. Examples are alkali for soapmaking, bleaching powder for cotton, and silica and sodium carbonate for glassmaking. It will be noted that these are all inorganic chemicals. The organic chemicals industry started in the 1860s with the exploitation of William Henry Perkin’s discovery if the first synthetic dyestuff—mauve. At the start of the twentieth century the emphasis on research on the applied aspects of chemistry in Germany had paid off handsomely, and by 1914 had resulted in the German chemical industry having 75% of the world market in chemicals. This was based on the discovery of new dyestuffs plus the development of both the contact process for sulphuric acid and the Haber process for ammonia. The later required a major technological breakthrough that of being able to carry out chemical reactions under conditions of very high pressure for the first time. The experience gained with this was to stand Germany in good stead, particularly with the rapidly increased demand for nitrogen-based compounds (ammonium salts for fertilizers and nitric acid for explosives manufacture) with the outbreak of world warⅠin 1914. This initiated profound changes which continued during the inter-war years (1918-1939).1．化学工业的起源尽管化学品的使用可以追溯到古代文明时代，我们所谓的现代化学工业的发展却是非常近代（才开始的）。

Unit 1 Chemical Industry化学工业1.化学工业的起源尽管化学品的使用可以追溯到古代文明时代,我们所谓的现代化学工业的发展却是非常近代(才开始的)。

可以认为它起源于工业革命其间,大约在1800年,并发展成为为其它工业部门提供化学原料的产业。

比如制肥皂所用的碱,棉布生产所用的漂白粉,玻璃制造业所用的硅及Na2CO3. 我们会注意到所有这些都是无机物。

有机化学工业的开始是在十九世纪六十年代以William Henry Perkin 发现第一种合成染料—苯胺紫并加以开发利用为标志的。

20世纪初,德国花费大量资金用于实用化学方面的重点研究,到1914年,德国的化学工业在世界化学产品市场上占有75%的份额。

这要归因于新染料的发现以及硫酸的接触法生产和氨的哈伯生产工艺的发展。

而后者需要较大的技术突破使得化学反应第一次可以在非常高的压力条件下进行。

这方面所取得的成绩对德国很有帮助。

特别是由于1914年第一次世界大仗的爆发,对以氮为基础的化合物的需求飞速增长。

这种深刻的改变一直持续到战后(1918-1939)。

1940年以来,化学工业一直以引人注目的速度飞速发展。

尽管这种发展的速度近年来已大大减慢。

化学工业的发展由于1950年以来石油化学领域的研究和开发大部分在有机化学方面取得。

石油化工在60年代和70年代的迅猛发展主要是由于人们对于合成高聚物如聚乙烯、聚丙烯、尼龙、聚脂和环氧树脂的需求巨大增加。

今天的化学工业已经是制造业中有着许多分支的部门,并且在制造业中起着核心的作用。

它生产了数千种不同的化学产品,而人们通常只接触到终端产品或消费品。

这些产品被购买是因为他们具有某些性质适合(人们)的一些特别的用途,例如,用于盆的不粘涂层或一种杀虫剂。

这些化学产品归根到底是由于它们能产生的作用而被购买的。

2.化学工业的定义在本世纪初,要定义什么是化学工业是不太困难的,因为那时所生产的化学品是很有限的,而且是非常清楚的化学品,例如,烧碱,硫酸。

01 元素和元素周期表质子的数量在一个原子的核被称为原子序数,或质子数、周淑金、电子的数量在一个电中性原子也等于原子序数松山机场的总质量的原子做出很近的总数的质子和中子在它的核心。

这个总数被称为大量胡逸舟、中子的数量在一个原子,中子数,给出了a - z的数量。

这个术语是指元素,一个纯物质与原子组成一个单一的善良。

在药房“客气”原子的原子数来确定它,因为它的性质是决定其化学行为。

目前所有原子和Z = 1 a到Z = 107是知道的;有107种化学元素。

每一种化学元素起了一个名字和独特的象征。

对于大多数元素都仅仅是一个象征的英文名称缩写形式,一个或两个字母组成,例如:一些元素,长久以来,根据他们的拉丁名字符号,例如:在十七世纪后期开始的工作罗伯特²波以耳,提出当前一个元素的接受和运用的概念,产生了可观的知识大量调查的特性及其compounds1元素。

在1869年,D.Mendeleev和l .迈耶,独立工作能力,提出了周期性的律法。

在现代形式,法律规定的特性是周期函数的元素的原子编号。

换句话说,当元素的顺序列出增加原子序数、元素有相近的财产落在了明确的间隔沿名单。

由此,我们有可能安排的名单表格元素的元素有相似的性质columns2放置在垂直。

这样的安排被称为一个周期每个水平排的元素构成一段时间。

但应该注意的是,不同长度的时期。

这是一个非常短只包含二元素,后面跟着两个短的每8元素,然后两个长期的18个元素组成。

下一个阶段包括32元素,最后一期明显不完整的。

这样的安排、元素在同一垂直柱有相似的特点。

这些圆柱构成化学家庭或组。

这个团体的成员为首的两8-element时期为主要集团指定的元素,其他组的成员被称为过渡或内在过渡元素。

在元素周期表,沉重的走线分元素到金属以及非金属矿物等。

元素的左本线(除氢)是金属,而那些右边是非金属矿物等。

这个师为方便使用,metalloids-have接壤的line-the元素的性质特点——两者都是金属以及非金属矿物等。

01T H E E L E M E N T S A N D T H E P E R I O D I C T A B L E01 元素和元素周期表The number of protons in the nucleus of an atom is referred to as the atomic number, or proton number, Z. The number of electrons in an electrically neutral atom is also equal to the atomic number, Z. The total mass of an atom is determined very nearly by the total number of protons and neutrons in its nucleus. This total is called the mass number, A. The number of neutrons in an atom, the neutron number, is given by the quantity A-Z.质子的数量在一个原子的核被称为原子序数,或质子数、周淑金、电子的数量在一个电中性原子也等于原子序数松山机场的总质量的原子做出很近的总数的质子和中子在它的核心。

这个总数被称为大量胡逸舟、中子的数量在一个原子,中子数,给出了a - z的数量。

The term element refers to, a pure substance with atoms all of a single kind. To the chemist the "kind" of atom is specified by its atomic number, since this is the property that determines its chemical behavior. At present all the atoms from Z = 1 to Z = 107 are known; there are 107 chemical elements. Each chemical element has been given a name and a distinctive symbol. For most elements the symbol is simply the abbreviated form of the English name consisting of one or two letters, for example:这个术语是指元素,一个纯物质与原子组成一个单一的善良。