Ultrahigh-speed optical frequency domain imaging and application to laser ablation monitor

超快太赫兹时域光谱系统张宏飞;苏波;何敬锁;张存林【摘要】超快太赫兹时域光谱系统是基于高速异步光学采样原理进行工作的,该系统使用2个重复频率可在1 GHz附近变化的飞秒振荡器,并使用高带宽反馈电路控制其重复频率.2个飞秒振荡器的重复频率存在Δf的失谐,一个飞秒振荡器的重复频率是1 GHz+Δf Hz,为泵浦脉冲;另一个飞秒振荡器的重复频率是1 GHz,为探测脉冲,由此提供泵浦脉冲和探针脉冲的时间差,时间延迟呈周期性变化,其扫描周期可以由1/Δf给出.此系统摒弃了传统T Hz-TDS系统所必需的机械延迟线,采用双光子探测器来产生触发信号.当设定Δf=1 kHz时,1 ms就可以探测出1个T H z谱,用时10.3 s即可得到动态范围为21 dB、频谱分辨率为5 G H z的太赫兹信号.该系统具有检测速度快和频谱分辨率高的优点,在需要快速测量的应用环境中有着传统太赫兹时域光谱系统不可比拟的优势.【期刊名称】《应用光学》【年(卷),期】2019(040)002【总页数】4页(P229-232)【关键词】太赫兹;异步采样;时域光谱系统【作者】张宏飞;苏波;何敬锁;张存林【作者单位】首都师范大学物理系太赫兹光电子学教育部重点实验室,北京100048;太赫兹波谱与成像北京市重点实验室,北京100048;北京成像技术高精尖创新中心,北京100048;首都师范大学物理系太赫兹光电子学教育部重点实验室,北京100048;太赫兹波谱与成像北京市重点实验室,北京100048;北京成像技术高精尖创新中心,北京100048;首都师范大学物理系太赫兹光电子学教育部重点实验室,北京100048;太赫兹波谱与成像北京市重点实验室,北京100048;北京成像技术高精尖创新中心,北京100048;首都师范大学物理系太赫兹光电子学教育部重点实验室,北京100048;太赫兹波谱与成像北京市重点实验室,北京100048;北京成像技术高精尖创新中心,北京100048【正文语种】中文【中图分类】TN206;O439引言在传统的太赫兹时域光谱系统中，需要使用机械平移台的扫描来实现泵浦脉冲或者探测脉冲的时间延迟，从而得到太赫兹时域波形，但是，它存在一个致命的问题就是扫描一次所需要的时间大约在10 min左右，不具备高速扫描的特点，因此提出了一种基于光学异步采样的超快太赫兹时域光谱系统。

电气及半导体词汇词典-U1. U-bolt ==> U形螺丝2. u shape hanger chains ==> u形曲链片吊挂装置3. u shaped manometer ==> u形压力计4. ubitron ==> 波动射束注入器5. uhf ==> 特高频6. uhf band pass filter ==> 特高频带通滤波器7. uhf converter ==> 特高频变频器8. uhf preamplifier stage ==> 特高频前置放大器9. uhf tuner ==> 特高频调谐器10. uhf vision transmitter ==> 特高频图象发射机11. uhsi ==> 超高速集成电路12. UHV ==> 超高真空,特高压13. UHV AC system ==> 特高压交流电力系统14. UHV AC system planning ==> 特高压交流电力系统规划15. UHV AC transmission line ==> 特高压交流输电线路16. UHV DC control and protection system ==> 特高压直流电力系统控制保护装置17. UHV DC system ==> 特高压直流电力系统18. UHV DC system planning ==> 特高压直流电力系统规划19. UHV DC system technologies ==> 特高压直流电力系统技术20. UHV DC transmission line ==> 特高压直流输电线路21. UHV reactors ==> 特高压交流系统电抗器22. UHV series compensation ==> 特高压交流系统变压器串补23. UHV substation ==> 特高压变电站24. UHV surge arresters ==> 特高压交流系统避雷器25. UHV switchgears ==> 特高压交流系统开关26. UHV transformers ==> 特高压变压器,特高压交流系统变压器27. UHV transmission ==> 特高压输电28. UHV transmission line ==> 特高压输电线路29. UHV, Ultra high voltage ==> 特高压30. UHVAC ==> 特高压交流系统31. UHVDC ==> 特高压直流系统32. ujt ==> 单结型晶体管33. ULF, ultra low frequency ==> 超低频34. ulg ==> 通用逻辑门35. ulsi ==> 超大规模集成化36. ultimate pressure ==> 极限压力37. ultimate resolution ==> 极限分辨力38. ultraaudion ==> 超三极管39. ultrabroad band light modulator ==> 超宽频带光调制器40. ultraclean area ==> 超净区域41. ultrafilter ==> 超细过滤器42. ultrafine geometry ==> 超精细几何形状43. ultrafine resolution ==> 超精细分辨力44. ultrahigh frequency ==> 特高频45. ultrahigh speed integration ==> 超高速集成电路46. ultrahigh vacuum ==> 超高真空47. ultrahigh vacuum evaporation ==> 超高真空蒸发48. ultralarge scale integration ==> 超大规模集成化49. ultralow backstreaming ==> 超低漏泄50. ultralow noise microwave cryoelectronic system ==> 超低噪声微波低温电子学系统51. ultrapure photoresist ==> 超高纯度光刻胶52. ultrapure water ==> 超纯水53. ultrashort laser pulse ==> 超短激光脉冲54. ultrashort light pulse ==> 超短光脉冲55. ultrashort wave transmitter ==> 超短波发射机56. ultrashort waves ==> 超短波57. ultrasonic bond ==> 超声焊接58. ultrasonic bonder ==> 超声焊机59. ultrasonic bonding ==> 超声焊接60. ultrasonic cleaner ==> 超声清洗器61. ultrasonic cleaning ==> 超声清洗62. ultrasonic etcher ==> 超声腐蚀装置63. ultrasonic frequency ==> 超音频64. ultrasonic holography ==> 超声全息照相术65. ultrasonic probe ==> 超声波探针66. ultrasonic seal ==> 超声封接67. ultrasonic soldering ==> 超声焊68. ultrasonic vapor degreaser ==> 超声蒸汽去油机69. ultrasonic wave ==> 超声波70. ultrasonic wedge bonding ==> 超声楔焊71. ultrasonic welder ==> 超声焊接机72. ultrasonic welding ==> 超声焊接73. ultrasonic wire bonding ==> 超声波线焊74. ultrasonics ==> 超声学75. ultrasound ==> 超声76. ultrasound delay line ==> 超声延迟线77. ultrathin membrane ==> 超薄膜78. ultratrace impurity ==> 超痕量杂质79. ultraudion ==> 超三极管80. ultraviolet exposure ==> 紫外线曝光81. ultraviolet filter ==> 紫外线滤光器82. ultraviolet laser ==> 紫外激光器83. ultraviolet lithography ==> 紫外线光刻84. ultraviolet ozone cleaning ==> 紫外线臭氧清洗85. ultraviolet projection system ==> 紫外投影装置86. ultraviolet radiation ==> 紫外线87. ultraviolet resist ==> 紫外线敏感光刻胶88. ultraviolet spectral range ==> 紫外光谱范围89. ultraviolet spectrum ==> 紫外光谱90. ultraviolet sterilizer ==> 紫外线杀菌器91. ultraviolet transparency ==> 紫外透迷92. umbrella antenna ==> 伞形天线93. un-uniform pollution ==> 不均匀污秽94. unattended processing ==> 无人处理95. unattended system ==> 无人监视系统96. unbalance ==> 不平衡97. unblanking circuit ==> 正程增辉电路98. uncased ==> 未罩外壳的99. uncased component ==> 无封装元件100. uncertain region ==> 不确定范围,不可辨区101. uncertainty of measurement ==> 测量的不确定度102. uncertainty of principle ==> 测不准原理103. uncertainty of range ==> 不确定范围104. uncertainty of relation ==> 不定关系105. uncharacteristic harmonics ==> 非特征谐波106. unclad optical fiber ==> 无包壳光纤107. uncollimated rays ==> 非准直光束108. uncompensated germanium ==> 未补偿的锗109. unconnected gate ==> 独立门110. uncontrolled multivibrator ==> 非稳态多谐振荡器111. uncooled photodetector ==> 非冷却光电探测器112. uncoupled lightguides ==> 非耦合光波导113. uncoupled mode ==> 非耦合模式114. undamped wave ==> 无衰耗波115. underbunching ==> 群聚不足116. undercoat ==> 底层117. undercooling ==> 过冷118. undercut ==> 坡口,钻蚀119. undercut profile ==> 钻蚀断面图120. underdevelopment ==> 显影不足121. underetch ==> 钻蚀122. underflow ==> 地流,潜流,下溢123. underfrequency relay ==> 低频继电器124. underground antenna ==> 地下天线125. underground cable ==> 地下电缆126. underlayer ==> 底层127. undershoot ==> 负尖峰128. undervoltage blocking circuit ==> 低电压闭锁回路129. underwater antenna ==> 水下天线130. underwater television ==> 水下电视131. underwater visibility ==> 水下可见度132. undistorted image ==> 无失真图象133. undistorted picture ==> 无失真图象134. undistorted wave ==> 无失真波135. undoped region ==> 无掺杂区136. undulater ==> 波绞机137. undulating light ==> 脉动光138. undulation effect ==> 波动效应139. undulator ==> 波纹机140. undulatory motion ==> 波动141. uneven surface ==> 粗糙表面142. unevenness ==> 粗糙度143. unexcited level ==> 未激能级144. unfilled level ==> 未满能级145. unflatness ==> 非平滑性146. uniaxial anisotropy ==> 单轴各向异性147. unidirectional aerial ==> 单向天线148. unidirectional antenna ==> 单向天线149. unidirectional microphone ==> 单向传声器150. unidirectional pulse ==> 单向脉冲151. unidirectional pulses ==> 单向脉冲152. unidirectional transmission ==> 单向传输153. uniform irradiation ==> 均匀辐照154. uniform lightguide ==> 均匀光波导155. uniform motion ==> 等速运动规律156. uniform waveguide ==> 均匀波导157. uniformity ==> 均匀性158. uniformity of illumination ==> 照鸣匀度159. unijunction transistor ==> 单结型晶体管160. unilateral matching ==> 单向匹配161. unilateral optical track record ==> 单向光学轨道记录162. unilayer ==> 单层163. unimodal laser ==> 单模激光器164. unimolecular film ==> 单分子膜165. unimolecular layer ==> 单分子层166. unintelligibility ==> 不清晰度167. union ==> 活接头,管节168. unipolar fet ==> 单极场效应晶体管169. unipolar integrated circuit ==> 单极型集成电路170. unipolar technology ==> 单极工艺171. unipolar transistor ==> 单极晶体管172. uniray ==> 通用阵列173. unit ==> 单位174. unit automatic exchange ==> 内部自动电话交换机175. unit call ==> 通话单位176. unit cell ==> 单元177. unit control ==> 单元控制178. unit pulse signal ==> 单位脉冲信号179. unitary body ==> 单块衬底180. unity magnification projection unit ==> 单位放大投影曝光装置181. universal array ==> 通用阵列182. universal battery system ==> 共电制183. universal logic gate ==> 通用逻辑门184. universal receiver ==> 交直两用接收机185. universal synchronous asynchronous receiver transmitter ==> 通用同步异步收发机186. universal transmission function ==> 通用透射函数187. unleash ==> 发挥,放开,解开...的皮带,解除...的束缚,解放,释放188. unload ==> 放电189. unload cassette ==> 卸载盒190. unloadding spout vent fan ==> 卸料口通风风机191. unloaded antenna ==> 无负载天线192. unloaded pcb ==> 无载印制电路板193. unloading valve ==> 卸载阀194. unmasked region ==> 无掩蔽区195. unmodulated carrier ==> 未调制载波196. unmodulated light ==> 未调制光197. unpackaged chip ==> 未封装芯片198. unpolarized light ==> 非偏振光199. unpolarized luminescence ==> 非偏振发光200. unpolarized wave ==> 非偏振波201. unpopulated pcb ==> 无载印制电路板202. unrestorable system ==> 一次使用系统203. unsaturated gain ==> 不饱和增益204. unsharp spectral line ==> 模糊谱线205. unsoldering ==> 焊开206. unstable blocking oscillator ==> 不稳定间歇振荡器207. unstable cavity ==> 不稳定谐振器208. unstable circuit ==> 非稳定电路209. unstable equilibrium ==> 不稳定平衡210. unstable resonator ==> 不稳定谐振器211. unsteady system ==> 不稳定系统212. unsupported ribbon growth ==> 无支护带式晶体生长213. unsystematic ==> 无系统的214. unsystematic engineering ==> 无系统工程215. untriggered spark gap ==> 非触发式火花隙216. untrimmed accuracy ==> 未调节精度217. untuned aerial ==> 未调谐天线218. untuned antenna ==> 未调谐天线219. up converter ==> 向上变换器,向上变频器,增频变频器220. up diffusion ==> 再扩散221. up integration ==> 提高集成度222. upconversion ==> 增频变频223. upconverter ==> 上变频器,增频变频器224. update ==> 更新,刷新225. update information ==> 更新信息226. updated version ==> 更新方案227. upper and lower limits ==> 上下限228. upper harmonics ==> 高次谐波229. upper laser level ==> 上限激光电平230. upper level lifetime ==> 上能级寿命231. upper sideband ==> 上边带232. uproar ==> 喧嚣,大声吵闹,骚动233. upstream shift ==> 逆向位移234. upw ==> 超纯水235. uranium ==> 铀236. uranium assay ==> 铀含量237. uranium carbide ==> 碳化铀238. uranium concentrate ==> 铀精矿239. uranium conversion plant ==> 铀转化厂240. uranium cycle ==> 铀循环241. uranium deuterium lattice ==> 铀重水栅格242. uranium dioxide ==> 二氧化铀243. uranium dioxide pellet ==> 二氧化碳铀芯块244. uraser ==> 紫外激光器245. urban and rural power supply and distribution network ==> 城乡供配电电网246. urban distribution network configuration ==> 城市电网网架结构247. urban railway system ==> 城市轨道交通248. urgent call ==> 加急电活249. urgent need equipment ==> 急需设备250. urgent telegram ==> 紧急电报251. urgtented need equipment ==> 急需设备252. usable sensitivity ==> 可用灵敏度253. usart ==> 通用同步异步收发机254. useful power ==> 有效功率255. user ==> 用户256. user programmable logic ==> 用户可编程序逻辑257. UT ultrasonic testing ==> 超声波探伤258. utilization factor ==> 利用率259. UTS ultimate tensible strength ==> 极限抗拉强度260. uv ==> 紫外线261. uv degradation ==> 紫外线退化262. uv detector ==> 紫外检测器263. uv emulsion ==> 紫外线光敏乳胶264. uv photoemission spectroscopy ==> 紫外线光电发射光谱学265. uv projection printing ==> 紫外线投影曝光266. uv proximity printer ==> 紫外线接近式曝光装置。

利用NALM结构的被动锁模掺铒光纤激光器的研究况庆强;桑明煌;聂义友;张祖兴;付贵阳【摘要】为了研究光纤中的非线性效应对锁模脉冲的影响,采用非线性放大环镜来实现被动锁模,在分析非线性放大环镜传输特性理论的基础上,对被动锁模掺铒光纤激光器进行了相关的实验研究.实验中观察到了重复频率为280.2MHz、中心波长是1556.235nm、线宽是0.4nm的稳定的锁模脉冲现象.研究结果对更深入地了解被动锁模产生现象、进一步开展后续研究具有极其重要的意义.【期刊名称】《激光技术》【年(卷),期】2008(032)006【总页数】4页(P631-634)【关键词】激光技术;被动锁模;非线性放大环镜;锁模脉冲【作者】况庆强;桑明煌;聂义友;张祖兴;付贵阳【作者单位】江西师范大学,物理与通信电子学院,南昌,330022;江西师范大学,物理与通信电子学院,南昌,330022;江西师范大学,物理与通信电子学院,南昌,330022;江西师范大学,物理与通信电子学院,南昌,330022;江西师范大学,物理与通信电子学院,南昌,330022【正文语种】中文【中图分类】TN242引言在光纤通信系统中，超短光脉冲光源性能的优劣直接影响着系统传输质量的好坏与容量的大小。

掺铒光纤激光器具有工作阈值低、输出脉宽窄、峰值功率高、脉冲质量好、与传输光纤可高效耦合实现全光通信等优点，在众多有潜力的光源中倍受研究人员的重视，迄今为止已经有了许多的研究方案。

主动的谐波锁模技术是光纤激光器里产生高重复频率短脉冲的一个非常有效的方法[1-4]，主动锁模光纤激光器因具有输出脉冲啁啾小、可调谐范围大、重复频率高等优点，被认为是一种极其重要的超短脉冲光源[5-6]。

这种短脉冲产生机制对未来的超高速光通信有很重要的意义。

主动锁模光纤激光器输出谐波脉冲的重复频率等于调制器的调制频率，因而在实际上会受到调制器的最大调制频率的影响，不能达到一个很大的脉冲重复频率。

ｄｏｉ：１０．３９６９／ｊ．ｉｓｓｎ．１００３－３１１４．２０２４．０１．００７引用格式：辛雨，华健，胡留军，等．一种适合太赫兹通信的新波形方案：ＧＦＢ ＯＦＤＭ［Ｊ］．无线电通信技术，２０２４，５０（１）：６７－７３．［ＸＩＮＹｕ，ＨＵＡＪｉａｎ，ＨＵＬｉｕｊｕｎ，ｅｔａｌ．ＡＮｏｖｅｌＷａｖｅｆｏｒｍＳｃｈｅｍｅＳｕｉｔａｂｌｅｆｏｒＴｅｒａｈｅｒｔｚＣｏｍｍｕｎｉｃａｔｉｏｎ：ＧＦＢ ＯＦＤＭ［Ｊ］．ＲａｄｉｏＣｏｍ ｍｕｎｉｃａｔｉｏｎｓＴｅｃｈｎｏｌｏｇｙ，２０２４，５０（１）：６７－７３．］一种适合太赫兹通信的新波形方案：ＧＦＢ ＯＦＤＭ辛　雨１，２，华　健１，２，胡留军１，２，段向阳１，２，３（１．移动网络和移动多媒体技术国家重点实验室，广东深圳５１８０５５；２．中兴通讯股份有限公司，广东深圳５１８０５７；３．北京邮电大学，北京１００８７６）摘　要：太赫兹通信是未来６Ｇ中业界关注的重要场景之一。

太赫兹频段可以支持超大带宽和超高速率的无线通信，目前３ＧＰＰ协议中的正交频分复用（ＯｒｔｈｏｇｏｎａｌＦｒｅｑｕｅｎｃｙＤｉｖｉｓｉｏｎＭｕｌｔｉｐｌｅｘ，ＯＦＤＭ）技术使用支持的最大子载波间隔和最大快速傅里叶逆变换（ＩｎｖｅｒｓｅＦａｓｔＦｏｕｒｉｅｒＴｒａｎｓｆｏｒｍ，ＩＦＦＴ）点数不足以满足太赫兹场景超大带宽的需求。

提出了一种新的波形方案：广义滤波器组－正交频分复用（ＧｅｎｅｒａｌｉｚｅｄＦｉｌｔｅｒＢａｎｋＯｒｔｈｏｇｏｎａｌＦｒｅｑｕｅｎｃｙＤｉｖｉｓｉｏｎＭｕｌｔｉｐｌｅｘｉｎｇ，ＧＦＢ ＯＦＤＭ）波形，可以将原有的大点数ＩＦＦＴ分解成两级小点数的ＩＦＦＴ，以支持更大的传输带宽。

ＧＦＢ ＯＦＤＭ还可以灵活地支持不同子载波间隔、不同数据类型的联合处理，以实现不同业务类型的传输。

ＧＦＢ ＯＦＤＭ在接收端仍然可以采用传统的循环前缀正交频分复用（ＣｙｃｌｉｃＰｒｅｆｉｘＯｒｔｈｏｇｏｎａｌＦｒｅｑｕｅｎｃｙＤｉｖｉｓｉｏｎＭｕｌｔｉｐｌｅｘｉｎｇ，ＣＰ ＯＦＤＭ）接收方法，仿真结果表明ＧＦＢ ＯＦＤＭ的综合性能优于ＣＰ ＯＦＤＭ。

u-bending press u形弯曲压力机u-blade bulldozer u形铲刀式推土机u-bolt u形螺栓u-gauge u形压力计u-hanger u形吊钩u-press u形压力机u-shaped brake 复合闸u-shaped glass u形玻璃u-slot piston u形槽活塞u-tube heat exchanger u形管换热器u-tube manometer u形管压力计u-type mining car u型矿车u-type pipe u形管uaz 乌阿斯牌汽车ubbelohde viscosity meter 乌氏粘度计ubenimex 乌苯美司ubisindine 乌比新定udimet alloy 尤迪梅特镍基耐热合金udometer 雨量计udomograph 自记雨量计udoncol 氰粉灵ugrandite 铬钙铁榴石uhf bridge 超高频电桥uhf carbon film resistor 超高频碳膜电阻器uhf handheld transceiver 超高频手持式收发机uhf land mobile radio communication equipment 超高频陆地移动无线通信设备uhf mini-trunking radio system 超高频小型中继无线通信系统uhf mobile transceiver 超高频移动式收发机uhf power booster 超高频功率升高器uhf resonance frequency meter 超高频谐振式频率计uhf superconducting magnetometer 超高频超导磁强计uhf sweep-signal analyzer 超高频扫描信号分析仪uintahite 硬沥青ukraine sausage 乌克兰香肠ukulele 尤格里里琴ulco metal 乌尔科铅基轴承合金ulcony metal 乌尔科尼铜铅系轴承合金uldazepam 乌达西泮ulfsunda faience 乌尔夫宋达陶器ullage rule 测量罐空的量尺ullah fibre 乌拉纤维ulmal 乌马尔高强度高韧性铝镁合金ulmus parvifolia 榔榆ulster cloth 厄尔斯特长毛大衣呢ulster 厄尔斯特宽大衣ulstron 厄尔斯特纶聚丙烯长丝ultimate flax fibre 亚麻单纤维ultra brite 特洁牌牙膏ultra fast amplifier 超速放大器ultra high frequency power signal generator 超高频功率信号发生器ultra high strength high-modulus fibre 超高强度高模量纤维ultra large crude oil carrier 超大型油轮ultra light aircraft 超轻型飞机ultra project meter 超精度投影比较仪ultra suede 仿麂皮无纺布ultra thermometer 超高温温度计ultra thermostat 超级恒温器ultra thick complexed gel 超稠多元胶ultra wide angle lens 特宽广角镜头ultra wide band signal generator 超宽频带信号发生器ultra-dry bulb hygrometer 超干球湿度计ultra-fast computer 超高速计算机ultra-high frequency cathode ray tube 超高频阴极射线管ultra-high frequency converter 超高频变频器ultra-high frequency correlator 超高频相关器ultra-high frequency generator 超高频发生器ultra-high frequency jammer 超高频干扰器ultra-high frequency nuclear magnetic resonance spectrometer 超高频核磁共振波谱仪ultra-high frequency oscillator 超高频振荡器ultra-high frequency receiver 超高频接收机ultra-high frequency test receiver 超高频试验接收机ultra-high frequency transmitter 超高频发射机ultra-high frequency wave meter 超高频波长表ultra-high molecular weight polyethylene 超高分子量聚乙烯ultra-high resistance and resistivity tester 超高电阻及电阻率测试仪ultra-high speed camera 超高速摄影机ultra-high speed facsimile 超高速传真机ultra-high speed sewing machine 超高速缝纫机ultra-high speed streak camera 超高速扫描摄影机ultra-high speed transient recorder 超高速瞬态记录仪ultra-high strength filament 超高强度长丝ultra-high strength steel 超高强度钢ultra-high temperature press 超高温压机ultra-high viscosity mixer 超高粘度混合器ultra-high voltage electron microscope 超高压电子显微镜ultra-high-vacuum monochromator 超高真空单色仪ultra-low birefringence fiber 超低双折射光纤ultra-low frequency amplifier 超低频放大器ultra-low frequency dualtrace oscilloscope 超低频二综示波器ultra-low frequency oscilloscope 超低频示波器ultra-low frequency phase shifter 超低频移相器ultra-low temperature ball valve 超低温球阀ultra-low temperature pump 超低温泵ultra-low temperature throttle valve 超低温闸阀ultra-low weight portable power-driven sprayer 超轻量手提式电动喷雾器ultra-low-carbon steel 超低碳钢ultra-low-expansion mirror telescope 超低膨胀率镜望远镜ultra-low-loss fiber 超低损耗光纤ultra-micro cammera 超微型照相机ultra-micro titrator 超微滴定器ultra-micrometer 超测微计ultra-micromotor 超微型电机ultra-optimeter 超级光学计ultra-particle colloid grinder 超微粒胶体磨ultra-pressure mercury lamp 超高压汞灯ultra-pure hydrogen generator 超纯氢发生器ultra-rapid cinematograph 高速电影摄影机ultra-rapid holographic camera 超高速全息摄影机ultra-short wave diathermy apparatus 超短波透热机ultra-short wave oscillator 超短波振荡器ultra-short wave receiver 超短波接收机ultra-short wave therapy apparatus 超短波治疗仪ultra-short wave transmitter 超短波发射机ultra-short wave vacuum tube voltmeter 超短波真空管电压表ultra-short wave wireless telephone 超短波无线电话机ultra-speed centrifuge 超速离心机ultra-tone generator 超音频发生器ultracentrifuge 超速离心机ultracide geigy 杀扑磷ultrafast recovery photodiode 超速复原光电二极管ultrafilter 超滤器ultrafiltration apparatus 超滤设备ultrafiltration monitor 超滤监测器ultrafine colloidal antimony oxide 超微细胶体氧化锑ultrafine fibre 超细纤维ultrafine granulated sugar 微晶砂糖ultrafine powdered sugar 微细糖粉ultrahard high speed steel end mill 超硬高速钢立铣刀ultrahigh frequency superconducting magnetometer 超高频超导磁强计ultralumin 超硬铝ultramarine 群青青ultramicrobalance 超微量天平ultramicroscope 超显微镜ultramicrospectrophotometer 超显微分光光度计ultramicrotome 超薄切片机ultramicrowave interferometer 超微波干涉仪ultraoptimeter 超光测仪ultraoscilloscope 超短波示波器ultraperm 超坡莫高导磁率合金ultraphotometer 超光度计ultraporcelain 超高频瓷ultrapowerful nd-fe-b permanent magnetic alloy 超强钕铁硼永磁合金ultrared sweeping temperature measuring instrument 红外扫描测温仪ultrared-ray video microscope 红外线视频显微镜ultrascan laser densitometer 超精度扫描激光密度计ultrasensitive amino-acid analyzer 超灵敏氨基酸分析仪ultrasensitive magnetometer 超灵敏磁强计ultrasensitive pressure gauge 高灵敏度压力计ultrasensitive superconducting magnetic gradiometer 超灵敏超导磁重力梯度仪ultrashort pulse laser 超短脉冲激光器ultrashort wave broadcasting emitter 超短波广播发射机ultrasonator 超声振荡器ultrasonic atomizer apparatus 超声雾化器ultrasonic atomizer 超声雾化器ultrasonic attenuation measuring device 超声衰减测量仪ultrasonic bath 超声波浴缸ultrasonic blood flow meter 超声波血流计ultrasonic blood flow rate meter 超声波血流率计ultrasonic blood pressure monitor 超声波血压监测器ultrasonic blood vessel detector 超声血管检测仪ultrasonic camera 超声波摄像机ultrasonic cardiogram equipment 超声心动图仪ultrasonic cardiograph 超声心动图仪ultrasonic cardiokymograph 超声心动描记器ultrasonic cataract crushing and extracting apparatus 超声波白内障粉碎吸出仪ultrasonic cell disruptor 超声波细胞粉碎机ultrasonic cement analyzer 超声水泥分析器ultrasonic cleaner 超声波除垢器ultrasonic cleaning bath 超声波洗净槽ultrasonic cleaning machine 超声清洗器ultrasonic cleaning set 超声净化器ultrasonic clearing machine 超声波清理机ultrasonic coat thickness gauge 超声涂层厚度计ultrasonic concrete tester 超声波混凝土测试仪ultrasonic converter 超声波变换器ultrasonic cw spectrometer 超声连续波光谱仪ultrasonic defect detector 超声探伤仪ultrasonic defectoscope 超声探伤器ultrasonic densimeter 超声波比重计ultrasonic dental drill 超声波牙钻ultrasonic dental unit 超声波洁牙器ultrasonic depth finder 超声探深仪ultrasonic detector for density of mixed fuel 超声波混合燃料浓度检测仪ultrasonic detector 超声波探测器ultrasonic development diagnostic instrument 超声显像诊断仪ultrasonic diagnostic apparatus 超声波诊断仪ultrasonic diagnostic scanner 超声诊断扫描仪ultrasonic diagnostic unit 超声波诊断仪ultrasonic diathermy apparatus 超声波透热设备ultrasonic digital water level gauge 超声波数字水位计ultrasonic doppler blood flow meter 超声多普勒血液流量计ultrasonic doppler method diagnostic equipment 超声多普勒诊断仪ultrasonic driller 超声波钻机ultrasonic echo sounder 超声回波测深仪ultrasonic echo-impulse digital thickness meter 超声回波脉冲数字式测厚仪ultrasonic emission detector 超声波发射探测仪ultrasonic fault detector 超声波探伤仪ultrasonic fetal heart beat detector 超声胎儿心搏检测仪ultrasonic fetal pulse detector 超声胎音测定仪ultrasonic film thickness gauge 超声膜厚计ultrasonic flaw detector 超声探伤仪ultrasonic flaw-detecting machine 超声波探伤机ultrasonic flow detector 超声测流器ultrasonic flowmeter 超声波流量计ultrasonic fluctuation velocimeter 超声波动测速计ultrasonic gauge 超声波探伤仪ultrasonic generator 超声波发生器ultrasonic heartbeat diagnostic instrument 超声心搏诊断仪ultrasonic heating therapy apparatus for tumor 超声肿瘤加热治疗机ultrasonic hematometer 超声血压计ultrasonic humidifier 超声波加湿器ultrasonic hydrophone 超声水听器ultrasonic interferometer 超声干涉仪ultrasonic intracranial pressuregraph 超声颅内压力自计仪ultrasonic lapping machine 超声精研机ultrasonic leak detector 超声波检漏器ultrasonic leak locator 超声波泄漏定位仪ultrasonic lens 超声波透镜ultrasonic level controller 超声液位控制器ultrasonic light modulator 超声光调制器ultrasonic light valve 超声光阀ultrasonic linear image diagnosis device 超声线性成像诊断仪ultrasonic liquid doppler flowmeter 超声多普勒液体流量计ultrasonic machine tool 超声波加工机床ultrasonic massager 超声波按摩器ultrasonic meter 超声波测量仪ultrasonic micrometer 超声测微计ultrasonic microscope 超声显微镜ultrasonic mode changer 超声波振动模式变换器ultrasonic modulator 超声波调制器ultrasonic monitor 超声波监测器ultrasonic nebulizer 超声波雾化器ultrasonic negative-ion generator 超声波负离子发生器ultrasonic oscillator 超声振荡器ultrasonic particle monitor 超声波粒子监测仪ultrasonic pen pointer 超声指示笔ultrasonic plastic welder 超声波塑料焊接机ultrasonic probe 超声波探头ultrasonic radar 超声雷达ultrasonic rapid sector scanner 超声快速扇形扫描仪ultrasonic receiver 超声波接收机ultrasonic reflectoscope 超声波探伤器ultrasonic refractoscope 超声波折射检验器ultrasonic scaler 超声波除垢器ultrasonic scaling apparatus 超声波除垢器械ultrasonic scanner 超声波扫描器ultrasonic sector scanner 扇形超声扫描仪ultrasonic sensor 超声波传感器ultrasonic soldering iron 超声波钎焊烙铁ultrasonic soldering machine 超声波焊机ultrasonic spectroscope 超声分光镜ultrasonic sphygmomanometer 超声脉压计ultrasonic stethoscope 超声波听诊器ultrasonic stress analyzer 超声应力分析仪ultrasonic stroboscope 超声波频闪观测器ultrasonic surgical instrument 超声手术器械ultrasonic temperature measuring apparatus 超声测温仪ultrasonic tester 超声波测试器ultrasonic therapeutic apparatus for brain 脑超声波治疗机ultrasonic therapy apparatus 超声波治疗机ultrasonic thermometer 超声波温度计ultrasonic thickness gauge 超声波测厚计ultrasonic thickness meter 超声波测厚仪ultrasonic thickness tester 超声波测厚仪ultrasonic tomograph 超声层析x射线摄影机ultrasonic tooth cleaner 超声波洁牙器ultrasonic transducer 超声波传感器ultrasonic transmitter 超声波发射器ultrasonic treatment unit 超声波治疗装置ultrasonic viscometer 超声波粘度计ultrasonic walking aid 超声助行仪ultrasonic washbasin 超声波洗面器ultrasonic washer 超声洗涤机ultrasonic water level gauge 超声波水位计ultrasonic wave cleaner 超声波清洗机ultrasonic wave diagnostic instrument 超声波诊断仪ultrasonic wave generator 超声波发生器ultrasonic wave height meter 超声波测量高度计ultrasonic wave quadrant section diagnostic meter 超声波扇形切面诊断仪ultrasonic web-break detector 超声波卷筒纸断裂指示器ultrasonic welding machine 超声波焊接机ultrasonic-mechanic multiplicate polisher 超声机械复合抛光机ultrasonically activated extruder 超音速驱动挤压机ultrasonicator 超声发生器ultrasonocardiograph 超声心动图仪ultrasonomicroscope 超声显微镜ultrasonoscope 超声波仪ultrasound breast scanner 超声波乳房扫描仪ultrasound therapy equipment 超声波治疗机ultrasound transmitting transducer 超声波发射换能器ultrastrength steel 超高强度钢ultrathin fibre 超细纤维ultrathin film 超薄薄膜ultrathin laser 超薄激光器ultrathin membrane 超薄膜ultrathin solid carbide slotting saw 超薄型固体硬质合金开槽锯ultrathin tinplate 超薄镀锡板ultrathin-film capacitor 超薄薄膜电容器ultraviolet absorber 紫外线吸收器ultraviolet absorbing filter 紫外线吸收滤光片ultraviolet absorption analyzer 紫外吸收分析器ultraviolet analyzer 紫外分析器ultraviolet band pass filter 紫外带通滤光片ultraviolet borescope 紫外线内孔探测镜ultraviolet brightener 紫外增白剂ultraviolet bulb 紫外线灯泡ultraviolet camera 紫外照相机ultraviolet curable resin coated fiber 紫外固化树脂涂覆光纤ultraviolet curable resin 紫外线固化树脂ultraviolet cured silicone acrylate 紫外光固化有机硅丙烯酸酯ultraviolet detector 紫外检测器ultraviolet dosimeter 紫外剂量计ultraviolet double beam spectrophotometer 紫外双射束分光光度计ultraviolet dye laser 紫外染料激光器ultraviolet eprom eraser 紫外线电可编程只读存储器擦除器ultraviolet erasable read-only-memory 紫外线可擦只读存储器ultraviolet filter 紫外滤波器ultraviolet flame detector 紫外线火焰检测器ultraviolet generator 紫外线发生器ultraviolet lamp 紫外灯ultraviolet laser rangefinder 紫外激光测距仪ultraviolet laser 紫外激光器ultraviolet lens 紫外光镜片ultraviolet light microscope 紫外光显微镜ultraviolet light sensing tube 紫外光敏管ultraviolet light stabilizer 紫外光稳定器ultraviolet microscope 紫外显微镜ultraviolet microspectrometer 紫外显微分光计ultraviolet monitor 紫外监控器ultraviolet nitrogen laser 紫外氮激光器ultraviolet photoelectron spectroscope 紫外光电子光谱仪ultraviolet photometer 紫外光度计ultraviolet photomultiplier 紫外光电倍增管ultraviolet photosensitive cell 紫外光敏管ultraviolet plate 紫外线感光板ultraviolet polarimeter 紫外偏振计ultraviolet pulse molecular nitrogen laser 紫外脉冲氮分子激光器ultraviolet ray absorbent 紫外线吸收剂ultraviolet ray lamp 紫外线灯ultraviolet ray power meter 紫外线功率计ultraviolet ray resisting paper 紫外线防护纸ultraviolet ray strength measuring meter 紫外线强度测量计ultraviolet receptor 紫外光感受器ultraviolet recorder 紫外线记录器ultraviolet refractometer 紫外折射计ultraviolet shield 紫外防护罩ultraviolet spectrograph 紫外光谱仪ultraviolet spectrometer 紫外光谱仪ultraviolet spectrophotometer 紫外分光光度计ultraviolet television microscope 紫外线电视显微镜ultraviolet transmitting filter 紫外透射滤光片ultraviolet treatment lamp 紫外线治疗灯ultraviolet tube 紫外光灯管ultraviolet water sterilizer 紫外线水消毒器ultraviolet width gauge 紫外线测宽仪ultraviolet-visible colorimetric monitor 紫外-可见光比色监测器ultraviolet-visible detector 紫外可见光检测器ultraviolet-visible effluent monitor 紫外-可见光流出物监测仪ultraviolet-visible spectrophotometer 紫外-可见光分光光度计ultraviscoson 超声粘度计ultravisuscope 超视镜ultron 厄尔特纶耐纶纤维ulysse-nardin 阿立斯那庭牌手表umbellate pore fungus 猪苓umbilical therapy band 脐疗带umbrascope 烟尘浊度计umbrella skirt 伞裥裙umbrella & parasol 伞类umbrella antenna 伞形天线umbrella cloth 伞布umbrella cover 伞套umbrella fabric 伞面umbrella gingham 条格伞布umbrella ring 伞环umbrella silk 伞绸umbrella skirt 伞形裙umbrella stand 伞架umbrella stem 伞柄umbrella stick 伞杖umbrella tops 阔边伞布umbrella type alternator 伞形交流发电机umbrella type generator 伞形发电机umbrella washer 伞形洗涤器umbrella wire 伞骨钢丝umbrella 伞umbrella-type moulder 伞形面团成圆机umbrella-type rounder 伞形揉圆机unakite 绿帘花岗石unasyn vial 注射用优立新unbalanced attenuator 不平衡衰减器unbalanced modulator 不平衡调制器unbalanced-load meter 不平衡负截指示仪unbelted corselet 不束带紧胸衣unbender 矫直机unblanking mixer 开启混频器unbleached calico 原色布unbleached flannel 本色法兰绒unbleached grass cloth 原色夏布unbleached greaseproof paper 本色防油纸unbleached muslin 本色薄洋纱印花坯布unbleached paper pulp 原色纸浆unbleached paper 本色纸unbleached sulphite paper 鸡皮纸unbleached tussah spun silk yarn 灰柞绢丝unbleached white bristle 原白猪鬃unbleached wide sheet 不漂白阔幅被单布unboiled silk 未脱胶丝unbonded strain gauge pressure transducer 应变计压力传感器unbonded strain gauge 应变计unbonded strain pressure transducer for medical service 医用胀力传感器unbreakable glass 不碎玻璃unbreakable metal 锌基韧性合金unbreakable slate 不碎石板unclipped carpet 不剪绒地毯uncoated book paper 未涂布书籍纸uncoated cover paper 未涂布封面纸uncoated laser 不镀膜激光器uncoated playing-card stock 未涂布扑克牌原纸uncoated postal-card stock 未涂布明信片原纸uncoated printing paper 未涂布印刷纸uncoated wire 无涂层焊丝uncoiler leveller 开卷-矫直机uncoiler 开卷机uncoiling machine 开卷机uncompensated amplifier 无补偿放大器uncompensated cavity resonator 无补偿空腔谐振器uncontrollable diesel generator set 不可控柴油发电机组uncontrolled rectifier 未稳压整流器uncooled laser 自然冷却式激光器uncrushable carpet 耐压地毯uncured mat 未固化的玻璃纤维毡uncut brocade 金银线浮花锦缎uncut serge 未剪毛哔叽uncut velvet 毛圈丝绒uncut worsted 毛哔叽uncutting wiping towel 毛边抹布undamped geophone 无阻尼地震检波器undecane 十一烷undecanoic acid 十一酸undecanol 十一醇undecene 十一碳烯undecenoic acid 十一碳烯酸undecoylium chloride iodine 恩地氯铵碘undecylene 十一碳烯undecylenic acid 十一碳烯酸undecyne 十一炔unden 残杀威under blouse 女衬衫under coating varnish 打底清漆under compound generator 欠复激发电机under drawers 衬裤under long pants 长衬裤under vest 汗背心under waist 衬里背心under-chassis 底盘under-current relay 欠流继电器under-power relay 欠功率继电器under-robe 旗袍衬衫under-voltage circuit breaker 欠压断路器under-voltage open phase relay 欠压开相继电器under-voltage relay 欠压继电器under-voltage release 欠压释放器under-voltage reverse phase relay 欠压反相继电器underbodice 紧身马甲underbody 衬里背心underclothes 内衣underclothing 内衣undercoat glaze 衬底釉undercoat 内衣underdrive double action drawing press 底传动式双动拉伸压力机underearth-wire finder 地埋线故障控测仪undergarment 内衣underglaze colour porcelain 釉下彩瓷器underglaze pigments 釉底颜料underground cable 地下光缆underground drill rig 坑道钻机underground drilling unit 巷道钻underground loader 地下装载机underground locomotive for mine 矿用井下电机车underground pipeline finder 地下管线探测仪underground railway train 地下铁道列车underground weigher 地秤underload circuit-breaker 欠载断路器underload relay 欠载继电器underload switch 欠载开关underlying refrigerator 下置式冰箱underpants 衬裤underpick loom 下投梭织机undersea fiber-optic cable 海底光缆undersea fiber-optic connector 海底光纤连接器undersea lightwave cable 海底光缆undershirt 汗衫undershorts 松紧短衬裤underskirt 衬裙underslung charging crane 悬臂式加料吊车underslung conveyer 悬挂式运输机undersquare engine 长行程发动机underthings 妇女内衣裤undertwisted yarn 低捻纱underwater acoustic communication apparatus 水声通信机underwater acoustic measuring instrument 水声测量仪underwater acoustic telemeter 水声遥测计underwater acoustic transducer 水声换能器underwater applicable anti-corrosive coating 水下施工防锈涂料underwater applicable anti-fouling paint 水下施工防污涂料underwater attracting fish lamp 水下诱鱼灯underwater cable 水下光缆underwater camera 水下摄影机underwater compass 水下罗盘underwater connector 水下连接器underwater electroacoustic transducer 水下电声传感器underwater emergency repair engineering vessel 水下抢修工程船underwater gamma spectrometer 水下γ射线光谱仪underwater hammer 水下打桩机underwater laser radar 水下激光雷达underwater laser 水下激光器underwater magnetic minedetector 水下磁性探雷器underwater manned submersible 水下载人潜水器underwater optical cable 水下光缆underwater optical fiber cable 水下光缆underwater pile driver 水下打桩机underwater platform 水下平台underwater pump 潜水泵underwater radiac set 水下放射性检测仪underwater repeater 水下增音机underwater robot 水下机器人underwater rock drill 水下钻岩机underwater sensor 水下传感器underwater separator 水下分离器underwater television camera 水下电视摄像机underwater transmissometer 水下混浊度仪underwater tv camera 水下电视摄像机underwater watch 潜水手表underwater welding electrode 水下焊条underwear and coat 内衣外衣underwear linen 亚麻内衣服装布underwear 内衣裤undies 妇女内衣undiluted epoxy resin 未稀释的环氧树脂undine 洗眼壶undokor 氰粉灵undress 便服undressed civet cat hair 不扎把麝猫毛undressed warp 无浆经纱undulated sheet iron 瓦垅薄钢板undulator 波纹机unequal twill 单面斜纹unequilateral angle steel 不等边角钢unetched fibre 未侵蚀纤维uneven paralleled bars 高低杠unfaced board 未抛光板unfinished round pin 粗加工圆销unfinished washer 粗加工垫圈unfocused laser 未聚焦激光器unglazed crucible 素烧坩埚unglazed floor tile 素地砖unglazed porcelain 素瓷unglazed printing paper 无光道林纸unglazed pure kraft paper 棕色平面牛皮纸unglazed tile 无釉墙砖unguentum pyranmeli pamoatis 抗蛲灵软膏unguentum 软膏ungummed silk 熟丝unhairing knife 去毛刀unhairing machine 去毛机unheated air drier 常温气流干燥机uni-cycle 独轮车uni-material fabric 纯纺织物uniaural stethoscope 单耳听诊器unicellular fibre 单细胞纤维unicorn incense burner 麒麟香炉unicoupler 单耦合器unidirectional conductor 单向导体unidirectional coupler 单向耦合器unidirectional direction finder 单向测向器unidirectional engine 单转向发动机unidirectional fabric 单向纤维织物unidirectional fibre 单向纤维unidirectional flow pump 直流泵unidirectional membrance rupture valve 单向破膜阀unidirectional mill 单向轧机unidirectional radio direction finder 单向无线电测向仪unidirectional ring laser 单向环形激光器unidirectional rupture diaphragm valve 单向破膜阀unidirectional transducer 单向转换器unidirectional turbine 单转向涡轮机unidur 乌尼杜尔铝锌镁合金unified miniature screw thread gauge 统一标准小直径螺纹规unified screw thread gauge 统一标准螺纹规unifilar electrometer 单丝静电计unifilar variometer 单丝磁变计uniflow boiler 单流式锅炉uniflow engine 单流式发动机uniflow steam engine 单流式蒸汽机uniflow type compressor 单流式压缩机uniflow type condenser 单流式冷凝器uniflow type diesel engine 直流式柴油机uniflow type scavenging engine 直流扫气式发动机uniflux condenser 单流式冷凝器uniflux tray s形塔盘unifocal lens 单焦透镜uniform cap 制服帽uniform chart 等刻度记录纸uniform cloth 制服呢uniform comb filter 均匀梳式滤波器uniform density lens 均匀密度透镜uniform force hinge pole 绞链恒力杆uniform force round pole 圆型恒力杆uniform force square pole 方型恒力杆uniform shirt 制式衬衫uniform strain shearing strengh tester 等应变剪切强度测试仪uniform 制服uniformly distributive coupler 均匀分布耦合器unika 尤尼卡牌照相机unilateral conduction rectifier 单向导电整流器unilateral transducer 单向换能器unilon 尤尼纶耐纶长丝uniloy 尤尼洛伊铬镍合金钢unimals 油尼马斯unimeter 伏安计unimodal laser 单模激光器unimog 乌尼莫格牌汽车uninterruptable power system 不间断电源uninterrupted power supply 不间断电源union blanket 棉毛毯union broadcloth 防雨厚毛毯union carpet 双面绒头地毯union cassimere 棉毛交织呢union chuck 双爪卡盘union cloth 棉毛呢union clutch 可逆转离合器union colorimeter 联合比色计union damask 交织装饰布union duck 交织帆布union dye 混染染料union grey 混纺交织衬衫布union huck towel 交织小花纹毛巾union italian cloth 半毛五页缎union linen lawn 交织细亚麻布union linen 交织亚麻布union nut 活接头螺母union serge 棉经毛纬哔叽union silk 交织伞绸union suit 连衫裤union swivel 活接头union tee 活接三通union towel 交织毛巾union yarn 混纺纱union 联合牌手表union 连管节uniphase amplifier 单相放大器unipolar dynamo 单极发电机unipolar field effect transistor 单极场效应晶体管unipolar generator 单极发电机unipolar machine 单极电机unipolar transistor 单极型晶体管unipon 茅草枯unipotential lens 单电位透镜uniprocessor 单处理机unique wear-resistant white cast iron 高效抗磨白口铸铁uniroyal 二氯萘酯unishear 单剪机unisparker 单-火花发生器unit body 整体车身unit construction computer 组件式计算机unit distributor 集成分电器unit head machine 组合头钻床unit injector 整体式喷油器unit packing machine 单元式包装机unit pill packer 单元式药丸包装机unit powder packer 单元式药粉包装机unit power plant 动力机组unit stranding machine 单元式绞缆机unit tablet packer 单元式药片包装机unit type optical fiber cable 单位式光缆unit water medicinal bottle packer 单元式药水瓶包装机unit-stranded cable 单元式绞合电缆unit-twin cable 单式对绞电缆unit-type cable 单位式电缆unitemp 尤尼滕普耐热合金unitized body 整体车身unitized frame 整体车架unity gain amplifier 单位增益放大器universal a-v-ω meter 万用表universal abrasive belt grinder 万能砂带磨床universal ammeter 通用电流表universal amplifier 通用放大器universal angle block 万能角规universal angle rule 万能角度尺universal angle square 万能角尺universal angle table 万能角度工作台universal angular expansion joint 万向角型伸缩接头universal arc suppressing reactor 通用熄弧电抗器universal assembly robot 通用装配机器人universal auto hydraulic balancing sole attaching machine 万能液压式自动平衡上底机universal auto hydraulic locating sole attaching machine 万能液压式自动定位上底机universal auto hydraulic sole attaching machine 万能液压式自动上底机universal auto parts 汽车通用件universal automatic spring coiling machine 万能自动卷簧机universal automatic spring winding machine manufacturing technology 万能自动卷簧机制造技术universal axial expansion joint 通用轴向伸缩接头universal balancing machine 通用平衡机universal bale press for fibre 纤维类通用打包机universal ball joint 球形万向节universal beam mill 万能式钢梁轧机universal bender 万能弯管机universal bevel protractor 万能量角器universal bevel 万能曲尺universal boring and drilling machine 万能镗钻两用机床universal boring head 万能镗头universal bridge 万用电桥universal broach sharpening machine 万能拉刀刃磨机universal cable measuring bridge 万能电缆测试电桥universal calorimeter 通用量热器universal camera 万能照相机universal center type grinding machine 万能中心磨床universal change-over switch 万能转换开关universal chrome-plated vernier angle protractor 镀铬游标万能角度尺universal chuck 万能卡盘universal combined punching and shearing machine 万能联合冲剪机universal compensator 万能补偿器universal connecting rod aligner 通用连杆对准器universal contour lathe 万能仿形车床universal controller 通用控制器universal cooker 万能烹饪锅universal copying device for camera 照相机用万能复制机universal coupling 万向联轴节universal crane 万能起重机universal cutter and tool grinder 万能工具磨床universal cutter grinder 万能磨刀机universal cutter grinding machine 万能磨刀机universal cutting pliers 万能剪钳universal cylindrical grinder 万能外圆磨床universal cylindrical grinding machine 万能外圆磨床universal data cipher set 通用数据密码机universal deoxidizer 通用除氧剂universal developer 通用显影粉universal diagnostic table 万能诊断台universal digital computer 通用数字计算机universal digital goniometer 数字式通用测角仪universal divider 万能分线规universal dividing head 万能分度头universal drafting machine 万能绘图机universal dredger 万能挖泥机universal dresser 万能修整机universal drill jig 万能式钻模universal driving device 万向传动装置universal dynamometer 通用测力仪universal edge grinder 万能刃磨机universal electric meter 万用电表universal electric tester 万能电器试验台universal electro welding torch 通用电焊喷灯universal electron microscope 通用电子显微镜universal enclosed changeover switch 万能密封转换开关universal equalizer 多频音调补偿器universal external grinder 万能外圆磨床universal external tool and cutter grinder 万能外圆工具磨床universal fatigue machine 万能疲劳试验机universal fatigue testing machine 万能疲劳试验机universal fax encryptor 通用传真密码机universal film camera 全能胶片摄影机universal fixture 万能工具台universal flight data recorder 通用飞行数据记录仪universal folding machine 万能折叠机universal form grinding machine 万能成形磨床universal fuse link 万用熔断链universal galvanometer 通用电流计universal gascutting machine 万能气割机universal gauge 万能规universal gear hobbing machine 万能滚齿机universal gear measuring instrument 万能测齿仪universal gear measuring machine 万能齿轮测量机universal gear shaving machine 万能型剃齿机universal gear tester 万能测齿仪universal gear testing machine 万能齿轮试验机universal geometrical micrometer 万能几何测微仪universal glue 万能胶universal grinder 万能磨床universal grinding machine 通用研磨机universal grip pliers 多用卡钳universal hand-bearing balancing machine 万能手动平衡机universal heavy duty lathe 重型普通车床universal hob testing instrument 万能滚刀测试仪universal holder of boring cutter 万能镗刀架universal horizontal metroscope 卧式万能测距水平仪universal hydraulic sole attaching machine 通用液压上底机universal hydraulic sole pressing machine 通用液压压底机universal hydraulic testing machine 液压万能试验机universal hydrometer 通用比重计universal index head 万能分度头universal induction quenchine machine 通用感应淬火机床universal infrared spectrophotometer 通用型红外分光光度计universal instrument lathe 通用仪表车床universal internal grinder 万能内圆磨床universal joint bearing 万向节轴承universal joint cross 万向节十字头universal joint crossing shaft 万向节十字轴universal joint fork nut 万向节叉螺母universal joint fork 万向节叉universal joint pump 万向接泵universal joint sliding fork assembly 万向节滑动叉总成universal joint spider 万向节十字头universal joint splined shaft 万向节花键轴universal joint 万向节universal knee-and-column miller 万能升降台式铣床universal knee-type milling machine with digital readout 数显万能升降台铣床universal knee-type milling machine 万能升降台铣床universal laser 通用激光器universal lathe 通用车床universal length measuring gauge 万能测长仪universal light electrical colorimeter 通用光电比色计universal link adjuster 万能连杆调节器universal machinery 通用机械universal measuring bridge 万用测量电桥universal measuring microscope 万能测量显微镜universal meter 万用表universal microscope 通用显微镜universal mill 万能铣床universal milling head 万能铣头universal milling machine with swivelling head 万能回转头铣床universal milling machine 广用万能铣床universal mixer 万能混合机universal modular switch 万能组合开关universal monochromator 通用单色仪universal motor 交直流两用电动机universal moulding machine 通用制模机universal numerical control machine tool 万能数字控制机床universal operation table 综合手术台universal output transformer 通用输出变压器universal passive periscope 通用被动式潜望镜universal pattern-making tester 万能制模试验机universal photometer 通用光度计universal photomicroscope 万能显微镜照相机universal pipe joint 万向联管节universal pipe wrench 套管钳universal planer 万能刨床universal planetary mill 万能行星式轧机universal plate mill 万能中厚板轧机universal pliers 万能钳universal plotting instrument 万能绘图仪universal pocket transit 通用袖珍经纬仪universal potentiometer 通用电位计universal process and reproduction camera 万能制版和复制摄影机universal profile copying lathe 万能仿型车床universal profile projector 万能轮廓投影仪universal programmer 通用编程器universal puller 万能拉出器universal punching machine 通用打孔机universal quick change chuck 多功能快换夹头universal radial drill 万能摇臂钻床universal radial drilling machine 万向摇臂钻床universal radial milling machine 万能摇臂铣床universal receiver 通用接收机universal recorder 万能记录器universal register 通用寄存器universal relieving lathe 万能铲齿车床universal research microscope 通用研究显微镜universal reversing roughing mill 万能可逆式粗轧机universal ring frame 万能环锭纺机universal roller former 万能滚压成型机universal rolling mill 万能轧机universal rotary switch 万能旋转开关universal roughing mill 万能式粗轧机universal saw sharpening machine 万能磨锯机universal scraper 万能刮刀universal screw wrench 万能螺旋扳手。

第50卷第5期V〇1.50No.5红外与激光工程Infrared and Laser Engineering2021年5月May2021新型功能化光纤微腔光频梳谭腾，姚彳百承(电子科技大学光纤传感与通信教育部重点实验室，四川成都611732)摘要：微腔光频梳以其独特的时频输出特性和集成化优势，正逐渐成为当代信息系统的基石。

近 期，全光纤的微腔光频梳迎来了新的进展。

来自电子科技大学和南京大学的研究者们，以超高Q值光 纤法珀谐振腔为栽体，实现了激光、克尔和布里渊光频梳的产生。

凭借其低损耗、可调谐、强稳定的独 特优势，将有望在服务光纤系统的正时、通信、微波和感知应用中发挥新的潜力。

关键词：光频梳；光纤；微谐振腔中图分类号：0436 文献标志码：A D O I：10.3788/IRLA20211025Novel functionalized frequency combs based on fiber microcavitiesTan Teng,Yao Baicheng(Key Laboratory of Optical Fiber Sensing and Communication (MOE), University ofElectronic Science and Technology of China, Chengdu 611731, China)Abstract:With its unique time-frequency characteristics and integrated advantages,micro combs have gradually become the cornerstone of modem information system.Recently,all fiber microcavity combs made a progress. Researchers from the University of Electronic Science and Technology of China and Nanjing University realized the generation of laser,Kerr and Brillouin optical frequency combs by using ultra-high Q-value fiber Fabry Perot resonators.They demonstrate unique advantages such as low loss,dynamic tunability and ultrahigh stability,may play new potentials in timing-standard,communication,microwave and sensing applications for fiber systems. Key words:frequency comb;optical fiber;microresonator光频梳，是指由一系列均匀间隔且具有稳定相位 关系的离散频率分量组成的光谱[1]，根据傅里叶变换, 同时提供稳定间隔的时域脉冲,是天然的时频基准和 高度稳定的脉冲激射源。

IT专业英语词汇精选(U)U unit 装置；部件；单元U update 更新U user 用户U you 你〖网语〗U.N.S.C. United Nations Statistical Commission 联合国统计委员会U.N.S.O. United Nations Statistical Office 联合国统计局U / L Up –Link 上行链路ua Ukrainian SSR 乌克兰（域名）UA Ultima Ascension 《创世纪9：升天》〖游戏名〗UA Ultrasonic Attenuation 超声波衰减UA Uniform Array 一致阵列UA Unit Address 单元地址UA Universal Agent 全权代理人UA Unnumbered Acknowledgment 未编号确认UA User Agent 用户代理（程序）UA User Area 用户区UAA Universal Access Authority 通用访问权，通用存取授权UAAS Universal Accounting Automatic System 通用自动记账系统UAC Uninterrupted Automatic Control 不间断性自动控制UACN Universal Automated Communication Network 万国自动通信网络UAD Uniform Automatic Processing System 统一的自动处理系统UADS User Attribute Data Set 用户属性数据集UADSL Universal Asymmetric Digital Subscriber Line 通用非对称数字用户线UAF User Authorization File 用户授权文件，用户认可文件UAG Universal Address Group 通用地址组UAL User Adaptive Language 用户自适应语言UALA Universal Adaptive Logic Arrays 通用自适应逻辑阵列UAM Underwater –to –Air Missile 水下对空导弹UAM User Account Manager 用户账户管理器UAN Unattended Answering Accessory 无人看管的应答辅助设备UAN User Account Number 用户账号UAOS User Alliance for Open Systems 开放系统用户联盟UAP Universal Availability of Publications 出版物国际共享UAP User Application Program 用户应用程序UAP User Area Profile 用户区简介UAQ Usable Area Query 可用区查询UAR User Action Routine 用户活动常规UART Universal Asynchronous Receiver / Transmitter 通用异步收发器〖芯片〗UAS Universal Access System 通用存取系统UAS Unmanned Aerospace Surveillance 无人宇宙空间监视，无人航空航天管制UA TE Universal Automatic Test Equipment 通用自动测试设备UAWG UADSL Working Group 通用非对称数字用户线标准工作组UAX Unit Automatic Exchange （电话）自动交换装置，小型自动电话交换机UB Upper Bound 上界，上限UB Upper Byte 高位字节.ub 无符号字节的音频文件格式〖后缀〗UBA UnBlocking Acknowledgement 分块确认UBA UniBus Adapter 单总线适配器UBB Universal Black Box 通用黑箱UBC Universal Bibliographic Control 世界目录控制UBC Universal Block Channel 通用数据块通道UBC Universal Buffer Controller 通用缓冲器控制器UBF UnBind Failure 协议撤销失败，终止会话失败UBHR User Block Handling Routine 用户块操作例程UBI UniBus Interconnect 单总线互连UBI Universal Bi –directional Interactive 通用双向交互UBIC UniBus Initialization Complete 单总线初始化完成ubiquilink 热门链接〖因特网〗UBITS Universal Bus Information Transfer System 通用总线信息传送系统UBN Unisource Business Network 单源商业网络UBNI UB Network Inc. UB 网络公司（美国网络厂商）UBR Unspecified Bit Rate 未定比特率UBR+ Unspecified Bit Rate Plus 未加说明的比特速率+UBS Unidirectional Broadcast System 单向广播系统UBSSYNTO UniBus Slave SYNc Time Out 单总线从设备同步时间结束UBSTO UniBus Select Time Out 单总线选择时间结束UBTA Uniform Binary Toggling Algorithm 统一二进制切换算法UC UnClassified 无类别，不保密UC UniChannel 单通道UC Union Carbide 联合碳化物公司（美国）UC Unisys Corp. 优利系统公司（美国，出品电脑主机）UC Unit Check 设备校验UC Universal Connectivity 通用连通性UC Universal decimal Code 通用十进制编码UC Unrecognizable Code 不可识别的代码，乱码UC Upper Case 大写字母盘UC Upper Character 高位字符UC User Class 用户类别.uc2 由UltraCompressor生成的压缩存档文件格式〖后缀〗UCA Unitized Component Assembly 通用化组件装配UCAT User Catalog 用户目录UCB UniGate Control Block 优利网关控制块（48字节数据块）UCB Unit Control Block 设备（单元）控制块UCB Universal Character Buffer 通用字符缓冲器UCB User Control Block 用户控制块UCBAR Universal Character Buffer Address Register 通用字符缓冲器地址寄存器UCC Uniform Code Council 统一编码理事会UCC Uniform Commercial Code 统一商用代码UCC Universal Category System 通用分类系统UCC Universal Conference Circuit 通用会议线路UCC Universal Conference Control 通用会议控制器UCC Universal Copyright Convention 万国版权公约UCC Utility Control Center 实用程序控制中心UCCS Universal Camera Control System 通用摄像机控制系统UCD Uniform Call Distribution(-or) 统一呼叫分配（器）UCDOS Universal Chinese Disk Operation System 通用中文磁盘操作系统UCDP UnCorrected Data Processor 漏校数据处理器UCE Unit Checkout Equipment 部件校验设备UCE Unit Control Error 部件控制误差UCF Unit Control File 部件控制文件UCG Universal Call Generator 一般调用发生器UCI User Class Identifier 用户类别标识符，用户级标识符UCIC Unequipped Circuit Identification Code 未配备的线路识别码UCIPS University of Canterbury Image –Processing System 坎特伯雷大学图像处理系统UCL Universal Communications Language 通用通信语言UCL Update Control List 更新控制表UCL Upper Control Limit 上控制限度UCLAN User Cluster Language 用户群语言UCM Unit Control Module 部件控制模块UCM Universal Communication Monitor 通用通信监视器UCM User Communication Manager 用户通信管理器UCMI Unit Control Module Identifier 部件控制模块标识符UCMT Unit Control Module Table 部件控制模块表.ucn 由UltraCompressor II生成的新压缩存档文件格式〖后缀〗UCP User Controlled Path 用户控制的路径UCPA Upper Command Packet Address 上级命令数据分组地址UCR UnConditioned Response 无条件响应UCS Universal Call Sequence 通用调用顺序UCS Universal Card Scanner 通用卡片扫描器（IBM研制）UCS Universal Character Set 通用字符集UCS Universal Classification System 通用分类系统UCS User Control Store 用户控制存储UCSB Universal Controller –System Bus 通用控制器系统总线UCSD Unitized Channel Storage Device 单元化通道存储装置UCSD Universal Communication Switching Device 通用通信转换装置UCSR Universal Code Synchronous Receiver 通用码同步接收机UCST Universal Code Synchronous Transmitter 通用码同步发送器UCT Universal Coordinated Time 通用的调整时间UCW Unit Command Word 设备命令字UCW Unit Control Word 设备控制字UCWIN Universal Chinese WINdows 通用中文窗口操作系统UD Unit Driver 部件驱动器UD User Data 用户数据UDAC User Digital Analog Controller 用户数字模拟控制器UDAS Unified Direct Access Standards 统一的直接存取标准UDB Unibus Data Block 单总线数据块UDB Universal Data Base 通用数据库UDBAS Universal Data Base Access System 通用数据库存取系统UDC Universal Decimal Classification 通用十进制分类法UDC Universal Digital Controller 通用数字控制器UDC Up –Down Counter 加减计数器UDC Upper Dead Center 上死点，上静点，死区上限UDC User Designation Code 用户指定代码UDEC Unitized Digital Electronic Calculator 单元化数字式电子计算器UDF Universal Data Format 通用数据格式UDF Universal Disk Format 通用磁盘格式UDF Unshielded twisted pair Development Forum 未屏蔽双绞线开发论坛UDF User –Defined Function 用户定义的功能，用户定义函数（子程序）.udf Photostyler的筛选文件格式〖后缀〗UDL Unifield Databased Language 单域数据库语言UDL Uniform Data Language 统一数据语言UDL Up Data Link 上行数据链路UDLC Universal Data Link Control 通用数据链路控制（通用自动计算机的）UDP User Datagram Protocol 用户数据包协议〖因特网〗UDPC Universal Digital Personal Communications 通用数字个人通信UDPRC Universal Digital Portable Radio Communication 便携式通用数字无线通信系统UDR Universal Document Reader 通用文件阅读器UDRC Utility Data Reduction Control 实用程序数据简化控制UDRC Utility Data Retrieval Control 实用程序数据检索控制UDRS Universal Data Reduction System 通用数据简化系统UDS Universal Data Structure 通用数据结构UDS Universal Data System 通用数据系统UDS Universal Distributed System 通用型分布式计算机系统UDS User Default Specification 用户缺省说明UDS Utility Definition Specifications 实用程序定义说明UDT Uniform Data Transfer 统一数据传送UDT UnitDaTa 单元数据UDT Unstructured Data Transfer 非系统化数据传送UDT User Defined Types 用户定义的样式UDTI Universal Digital Transducer Indicator 通用数字传感器指示器UDTS UnitDaTa Service 单元数据服务UDTS Universal Data Transfer Service 通用数据传送服务UDTV Ultra Definition TV 超清晰度电视UE Unit Exception 部件异常UE User Element 用户要素UE User Equipment 用户设备.ue2 由UltraCompressor II生成的加密存档文件格式〖后缀〗UEC Ultra Enterprise Cluster 超级企业群UEH User Exit Handler 用户退出处理程序UEI User Exit Interface 用户退出接口UEM User Exit Manager 用户退出管理器UERS Unusual Event Recording System 异常事件记录系统UET Universal Emulating Terminal 通用仿真终端UET User Electric Tag 用户电子标记UF Urban Factor 都市因素UF User Function 用户函数UFAM Universal File Access Method 通用文件存取方法UFC Universal Feature Card 通用特征卡UFC Universal Frequency Counter 通用频率计数器UFD User File Directory 用户文件目录UFDL Universal Forms Description Language 通用窗体描述语言UFE User Function Editor 用户函数编辑器UFET Unipolar Field –Effect Transistor 单极性场效应晶体管UFI USA Flex Inc. 美国电线公司（出品电脑主机）UFI User Friendly Interface 用户友好界面UFN until further notice 直至进一步通知〖网语〗UFO Unidentified Flying Object 不明飞行物，飞碟UFO Utility for File Operation 文件操作实用系统UFP Utility Facility Program 实用工具程序UFR Unspecified Frame Rate 未标明的帧速率UFS Universal Feature Slot 通用特性插槽UFS Universal Financial System 通用财务系统ug Uganda 乌干达（域名）UGR Universal Graphic Recorder 通用图形记录器UHCS Ultra –High Capacity Storage 超大容量存储体UHF UltraHigh Frequency 超高频UHFO UltraHigh Frequency Oscillator 超高频振荡器UHFR UltraHigh Frequency Receiver 超高频接收机UHM Universal Host Machine 通用主机UHR Ultra –High Resolution 超高分辨率UHRF Ultra High Resolution Facsimile 超高分辨率传真.uhs 二进制文件的通用暗示系统文件格式〖后缀〗UHSIC UltraHigh Speed Integrated Circuit 超高速集成电路UHV Ultra –High V oltage 超高压UI Unix International Unix 国际UI Unnumbered Information 未编号信息UI User Interface 用户接口，用户界面.ui Geoworks UI Compiler的Espire源码文件格式〖后缀〗.ui Sprint的用户接口文件格式〖后缀〗UIBPIP United International Bureaux for the Protection of Intellectual Property 国际联合保护知识产权局（瑞士，日内瓦）UIC User Identification Code 用户识别码UID User IDentifier 用户标识符UID number User IDentification number 用户识别号码UIE Universal Information Exchange 通用信息交换.uif WordPerfect for Win的windows长提示符文件格式〖后缀〗UIFN Universal International Freephone Numbers 通用国际免费电话号码.uih Geoworks UI Compiler的Espire页眉文件格式〖后缀〗UIM Ultra Intelligence Machine 超智能机UIM User Interactive Module 用户人机对话模块UIMS User Interface Management System 用户界面管理系统UIN Universal Internet Number 通用互联网号码（网络寻呼机专用）UIO Universal Input / Output 通用输入/ 输出UIOC Universal Input / Output Controller 通用输入/ 输出控制器UIP Universal Interface Processor 通用接口处理器UIS Unit Identification System 部件识别系统UIS Urban Information System 都市信息系统UIS User Interface System 用户接口系统UJCL Universal Job Control Language 通用作业控制语言UJP Ultra Java Processor 超级“爪哇”处理器UJT Unijunction Transistor 单结晶体管uk United Kingdom 英国（域名）UKAEA United Kingdom Atomic Energy Authority 英国原子能局UKB Universal KeyBoard 通用键盘UKITO United Kingdom Information Technology Organization 英国信息技术组织Uknet 美国肯塔基州立大学校园网〖因特网〗UKPO United Kingdom Post Office 英国邮政总局UL Underwriters Laboratories 保险协会实验室（美国，制定机电产品的安全规范）UL UnLoad 卸载UL UpLink 上行链路UL Upper Limit 上限UL User Language 用户语言（美国研制）.ul Ulaw音频文件格式〖后缀〗ULA Uncommitted Logic Array 自由逻辑阵列ULA Upper Layer Architecture 上层体系结构ULC Universal Logic Circuit 通用逻辑电路ULD Unit Logic Device 单元逻辑装置ULD Universal Language Definition 通用语言定义ULD Universal Language Description 通用语言描述ULD Up –Line Dumping 上一行清除.uld ProComm Plus的上传文件信息文件格式〖后缀〗ULF Ultra –Low Frequency 超低频ULG United Loan Gunmen “联合借贷枪手”（黑客名，1999.9.5侵入美国C –SPAN 有线电视网的网站）ULG Universal Logic Gate 通用逻辑门ULM Ultrasonic Light Modulator 超声波光线调节器ULM Universal Line Multiplexer 通用线路多路复用器ULMS Undersea Long –range Missile System 水下远程导弹系统ULP Upper –Layer Protocol 上层协议ULP Upper Level Protocol 高级别协议ULP User Location Protocol 用户区位协议ULS Ultra Limit Condition 极限状态ULS User Location Service 用户区位服务ULSI Ultra –Large –Scale Integration 超大规模集成（电路）ULSIC Ultra Large Scale Integrated Circuit 超大规模集成电路.ult UltraTracker的音乐文件格式〖后缀〗UltraSCSI Ultra Small Computer System Interface 超小型计算机系统接口um United States Out Islands 美国海外领地（域名）UM UnMatch 不匹配UM User Mode 用户模式UMA Unified Memory Architecture 统一内存体系结构，合一内存结构UMA Uniform Memory Access 统一内存访问UMA Universal Modeling Architecture 通用建模体系结构UMA Universal Multiple Access 通用多路存取，通用多重接入UMA Upper Memory Area 上端内存区（640K－1024K）UMADS Univac Automated Documentation System 通用自动计算机的自动文件编制系统UMB Universal Mail Box 通用邮箱UMB Upper Memory Block 上位内存块，上端内存块（UMA的）.umb MemMaker的备份文件格式〖后缀〗UMC Unibus Micro Channel 单总线微通道UMC Universal Multiline Controller 通用多线路控制器UMC 台湾联华电子公司〖厂标〗UMCPS Ultra –Micro –Computer Processor System 超微型计算机处理器系统UMCS Unattended Multipoint Communication Station 无人看管的多点通信站UMCS Universal Mobile Communication Service 通用移动通信服务UMCT Universal Move Communication Terminal 通用移动通信终端UMF Ultra Microfiche 超缩微胶片UMID Update Modification IDentifier 更新修改标识符UMIN University Medical Information Network 大学医学信息网络UMIS Urban Management Information System 城市管理信息系统UML Unified Modeling Language 统一建模语言，通用建模语言UMLC Universal MultiLine Controller 通用多线路控制器UMMPS University of Michigan Multi –Programming System （美国）密西根大学多道程序设计系统UMRECC University of Manchester REgional Computer Center 曼彻斯特大学地区计算机中心UMS Universal Maintenance Standard 通用维修标准UMS Universal Memory System 通用内存系统（英特尔公司研制）UMS Universal Multiprogrammi（本文来自第一范文网，转载请保留此标记。

光电英语词汇(U)光电英语词汇(U)光电英语词汇(U)u-band u[吸收光]带u-bolt u型螺栓u-center(uniform chromaticity scale) diagra 均匀色品图u-form tube u型管ulbricht integrating photometer 乌布利希积分光度计ulbricht sphere 布利希球（积分光度计）ultex 整块双焦点镜ultifocus lens 多焦点透镜ultimate (1)最後的(2)极限的(3)基本的ultimate particles 基本粒子ultimate pressure 极限压强ultimate range 极限范围ultimate ray 最後射线ultimate vacuum 极限真空ultiplicator 乘数ultra achromatic lens 超消色差透镜ultra bright 超亮的ultra narrowband filters 超窄频滤光镜ultra precise measurement 超精密测量ultra purity 超纯度ultra radio frequency 超射频[率]ultra trace 超痕量ultra-light-weight 超轻重量ultra-optimeter 超级光学计ultra-photometer 不可见光光度计ultra-portable camera 超小型电视摄像机ultra-rapid lens 超大孔径物镜ultra-red (1)红外的(2)红外线ultra-red absorption spectrometry 红外线吸收分光光度学ultra-red ray 红外线ultrafast 超速的ultrafast coherent phenomena 超速相干现象ultrafast light pulse 超速光脉冲ultrafast relaxation 超速弛豫ultrafiltration 超滤作用ultraharmonic 高次谐波[的]ultraharmonics 高次谐波ultrahigh frequency 超高频ultrahigh resolution 超高分辨率ultrahigh speed photographic instrument 超高速照相器械ultrahigh speed photography 超高速摄影术ultrahigh vacuum 超高真空ultralow frequency 超低频ultraluminescence 紫外荧光，紫外光ultramarine blue 绀青ultramicrometer 超微测试计ultramicroscope 超显微镜ultramicroscopic 超显微[的]ultramicroscopy 超显微术ultramicrowave 超微波ultraphosphate 过磷酸ultraphotic rays 不可见射线ultraplane microscope projection lens 超平场显微镜投影镜头ultraporcelain 超高频瓷ultrarays 宇宙线ultrascope image tube 紫外显像管ultrashort laser pulse 超短激光脉冲ultrashort light pulse 超短光脉冲ultrashort pulse 超短脉冲ultrashort synchronized laser pulse 超短同步激光脉冲ultrashort wave (usw)超短波ultrasil 超硅，高硅ultrasonic (1)超声的(2)超声速的ultrasonic bragg cell 超声喇格盒ultrasonic bragg diffraction 超声布喇格衍射ultrasonic cleaning 超声清洗ultrasonic control 超声控制ultrasonic cross grating 超声交叉光栅ultrasonic detecdor 超声[波]检测器ultrasonic flow 超声速流ultrasonic grating 超声光栅ultrasonic grating constant 超声光栅常数ultrasonic hologram 超声全息图ultrasonic holography 超声全息术ultrasonic lens 超声透镜ultrasonic light diffraction 超声致光衍射ultrasonic method 超声波法ultrasonic modulator 超声调制器ultrasonic q-switch 超声q开关ultrasonic scanner 超声扫描器ultrasonic space grating 超声空间光栅ultrasonic standing wave 超声驻波ultrasonic switch 超声开关ultrasonic washing 超声清洗ultrasonic wave 超声波ultrasonic-wave grating 超声波光栅ultrasonics 超声学ultrasound 超音波ultrasound holography 超声全息术ultrathin laser 超薄激光器ultrathing microscope 超薄显微镜ultraviolet (1)紫外的(2)紫外线ultraviolet absorbing filters 紫外吸收滤光镜ultraviolet absorption spectrometry 紫外吸收分光光度学ultraviolet and visible spectrophotometer 紫外可见分光光度计ultraviolet astronomical photometry 紫外天文光度学ultraviolet band 紫外区，紫外波段ultraviolet bandpass filter 紫外带通滤光片ultraviolet catastrophe 紫外灾变ultraviolet curing equipment 紫外线硬化设备ultraviolet cutoff 紫外线截止ultraviolet detection 紫外辐射探测ultraviolet dosimeter 紫外线剂量计ultraviolet impulse optics 紫外线脉冲光学ultraviolet injury 紫外线损伤ultraviolet lamp 紫外[线]灯ultraviolet laser (uv laser)紫外激光器ultraviolet lenses 紫外线透镜ultraviolet light (1)紫外线(2)紫外[线]轴射ultraviolet light sources 紫外线光源ultraviolet materials 紫外线材料ultraviolet microscope 紫外线显微镜ultraviolet photodiodes 光二极体(紫外光) ultraviolet photography 紫外线照相术ultraviolet photometer 紫外线度计ultraviolet photomicrography 紫外线显微照相术ultraviolet photon 紫外光子ultraviolet polarimeter 紫外线旋光仪，紫外偏振计ultraviolet pumping 紫外线抽运ultraviolet radiation 紫外辐射ultraviolet radiation standard 紫外辐射标准ultraviolet ray 紫外线ultraviolet refractometry 紫外折射测量法ultraviolet sensitive paper 紫外光敏纸ultraviolet spectrogram 紫外光谱图ultraviolet spectrograph 紫外摄谱仪ultraviolet spectrometer 紫外线分光计ultraviolet spectrum 紫外光谱ultraviolet telescope 紫外望远镜ultraviolet transition 紫外跃迁ultraviolet transmitting filters 紫外透过滤光镜ultraviolet vidicon 紫外光导摄像管ultraviolet wavelength 紫外线波长ultraviolet-emitting source 紫外线发射源ultraviolet-induced 紫外感应的ultraviolet-transmitting filter 紫外透射滤光片ultrawide angle lens 特广角物镜ultrawide angle photographic lens system 特广角照相透镜系统umber 赭色umbra (复数:umbre)本影umen-second 流明秒umweganregung 迂回激发un shielded telescope 无屏蔽望远镜un silvered plate 非镀银板unaberrated system 无像差系统unactivated 未激活的unactivated state 未激活态unadjusted eye 肉眼unaided eye 肉眼unannealed 未退火的unbacked film 无衬胶卷unbalance 失衡，不平衡unbalanced sight 非平衡瞄准unbiased (1)不偏的(2)未加偏压的unblanking [信号]开启，开锁unblemished surface 无[瑕]疵表面unblocking 卸模unbound electron 无束缚电子uncertainty (1)不确定性(2)不精确性uncertainty condition 测不准条件uncertainty principle 测不准定理uncertainty relation 测不准关系uncharged particle 不带电粒子unchecked 未经校核的unchirped 无啁啾效应的unchopped radiometer 未斩光辐射计unclad fibre 无色层纤维uncoated (1)未镀膜的(2)无履盖的uncoated laser 未镀膜激光器uncoated lens 无镀膜透镜uncoaxiality 不同轴性uncollimated 未准直的unconditional probability 无条件概率unconnected 不连接的uncontrolled 不受控制的uncoupled 解耦合的uncoupled particle 解耦合粒子uncut lens 未加工透镜undamped spiking 无阻尼尖峰undamped wave (1)无阻尼波(2)等幅波undeflected 未偏转的under exposure 曝光不足，欠曝光under-active 活化不足的under-exposed 曝光不足的，欠曝光的underbalance 欠平衡，欠平衡的undercharge 充电不足[的] undercolour removal (ucr)底色去除undercompensation 欠补偿，补偿不足undercorrected lens 校正不完全透镜undercorrection 校正不足undercoupling 欠耦合，耦合不足undercurrent (1)电流不足(2)暗流，潜流underdamping 阻尼不足，欠阻尼underdense 欠密的underdeterminant 子行例式underdevelopment 显影不足underexcitation 欠激发，内激励underlagged [相位]滞後欠调underload 欠载undermined-phase technique [偏振态测量]不定相位技术undermodulation 欠调制underquenching 淬火不足undersaturation 欠饱和undersea ranging 海下测距，水下测距undershoot (1)下冲(2)负脉冲信号underspeed 速度不足underswing 负尖峰underwater camera 水下照相机underwater laser radar 水下激光雷达underwater tv camera 水下电视摄像机underwater visibility 水下能见度underwater vision 水下视觉undeveloped 未显影的undeviated light 未偏射光undiffracted wave 未衍射波undissolved substance 不溶物undistorted 无畸变的undistorted image 无畸变图像，不失真图像undistorted wave 无畸变波undisturbed 无扰动的undoped 无掺杂的undoped diode 非掺杂二极管undoped single crystal 非掺杂单晶体undosed 未经照射的undulating light 脉动光undulation 波动，起伏undulatory 波动的unearthed 未接地的uneven front 不整齐前沿uneven grain 不均匀颗粒unevenness 不均匀性unevenness of exposure 曝光不均匀性unexcited 未激励的unexcited level 未激发能级unexcited state 未激发态unexposed 未曝光的unfilled level 未满能级unfilled shell 未填满壳层unfinished 未抛光的unfixed point 不定点unfocused 未聚焦的unfocused laser 未聚焦激光器unfocused light 未聚焦光unfocused surface 未研磨面unguided 无制导的unharmonic oscillator 非谐振荡器uniaxial 单轴的uniaxial crystal 单轴晶体uniaxial negative crystal 负单轴晶体uniaxial nonlinear single crystal 单轴非线性单晶uniaxial orientation 单轴取向unicolor 单色unicontrol 单向控制unidimensional 一维[的]unidimensional hologram 一维全息图unidirection 单向，同一方向unidirectional 单向的unidirectional traveling wave 单向行波unidirectional-information flow 单向信息流unified coarse thread (unc)统一标准粗牙螺纹unified fine thread (unf)统一标准细牙螺纹uniform 均匀uniform acceleration 匀加速度uniform amplitude 等幅uniform chromaticity scale diagram 均匀色品图uniform color space 均匀色空间uniform density 均匀密度uniform diffuse transmission 均匀扩散传输uniform distribution 均匀分布uniform field kerr cell 均[匀]场克尔盒uniform illumination 均匀照明uniform lightness-chromaticness scale (ulcs)均匀亮度–色度标uniform point source 均等点源uniform slope 等斜牵uniform velocity 匀速度uniformity 均匀性uniformity of illumination 照明均匀性uniformity of light 光的均匀性uniformization 均匀化uniformly diffusing surface 均匀散射面uniguide slit 单向狭缝unijunction 单结unijunction transistor 单结[晶体]管unilateral 单边的，单向的unilateral conduction 单向导电unilateral transducer 单向换能器unilaterally adjustable 单向可调的unilayer 单分子层unimodal laser 单模激光器uninsulated 未绝缘的union (1)连接(2)活接头unionized 未电离的uniphase 单相[的]uniphase mode 单相模uniplanar orientation 单面取向unipolar 单极的uniqe (1)唯一的(2)单值的uniqueness of solution 解的唯一性uniqueness theorem 唯一性定理unit (1)单位(2)单元(2)设备，装置，机构(4)组合，组合件，部件unit amplitude 单位振幅unit area 单位面积unit bore system 基孔制unit brightness 单位亮度unit cell 晶胞unit charge 单位电荷unit cube 单位立方体unit error 单位误差unit function 单位函数unit length 单位长度unit load 单位负载unit mass 单位质量unit matrix 单位[矩]阵unit of capacity 容量单位unit of error 误差单位unit of measurement 计量单位unit of time 时间单位unit of weight 重量单位unit plane 单位面，主位面unit pressure 单位压力unit pulse 单位脉冲unit resistance 单位电阻unit shaft system 基轴制unit step function 单位阶跃函数unit strain 单位应变unit stress 单位应力unit system 单位制unit time 单位时间unit vector 单位失量unit-power sighting telescope 一倍瞄准[望远]镜unitarityㄠ正性unitaryㄠ正的unitary matrixㄠ正矩阵unitary operatorㄠ正算符unitary representationㄠ正表示unitary scattering factorㄠ正散射因数unity emissivity 完全发射unity transmittance 单一透射比univalent 单价的universal angel block 万能角规universal apparatus 通用仪器universal bevel protractor 通用斜角规universal dividing head 万能分度头universal finder 万能取景器universal focus lens 固定焦聚焦透镜universal gear tester 万能测齿仪universal gravitation 万有引力universal horizontal metroscope 万能卧式测量仪universal joint mechanism 万向节机构universal joint spider 万向节十字头universal laser 通用激光器universal length measuring machine 万能测长仪universal lens interferometer 通用透镜干涉仪universal level 通用水准仪universal machine tools 通用机床universal measuring head 万能测量头universal measuring microscope 万能测量显微镜universal meter 万用表universal microscope 万能型显微镜universal motor 交流真流两用电动机universal photomicroscope 万能照相显微镜universal refractometer 万能折射计universal scale holder 万能尺架universal sine-rule 万能正弦规尺universal stage 万能[旋转]工具作台universal stand 万能台，多用座universal theodolite 通用经纬仪universal type 万能型，通用型univibrator 单稳态触发器，单稳态多谐振荡器univoltage lens 单电压透镜unknown (1)未知的(2)未知数unlimited exposure 无限曝光unmagnetized 未磁化的unmoderated 未减速的，未慢化的unmodulated 未调制的unoccupied level 未满能级unpacking 拆箱，拆封unperturbed 未扰动的unplugged 非堵塞的，非封开的unpolarized 未偏振的，未极化的unpolarized light 非偏振光unpredictability 不可预知性unquantized 未量子化的unreflected 无反射的，未反射的unrelated colo[u]r 孤立色unreliability 不可靠性unresolved lines 未分离谱线unresonant system 非分振系统unsaturation 未饱和unsealed system 非密封系统unshaded area 无阳影区unsharp 不清晰的unsharp image 不清晰图像unsharp line 模拟线unshielded 无屏蔽的，无防护的unstability 不稳定的unstable 不稳定的unstable optical resonator 非稳定光学共振腔unsteady 不稳定的unsteady state 非稳态unsuppressed sideband 未抑制的旁通带unsurveyed 未测量的unswept pumping 固定频率抽运unsymmetrical 非对称的untitled 无倾斜的unxoned metal lens 未分区金属透镜（天线）unzoned lens 未分区透镜（天线）up-down counter 可逆计数器upconversion (1)上转换(2)升频转换upconverter (1)上转换器(2)升频器，上变频器upconverting laser 升频转换激光器upfloated 浮起的upper film loop 上片环upper hemispherical flux 上半球光通量upper laser level 激光高能极，激光上能级upper limb 上缘upper limit (1)上限尺寸，最大尺寸(2)上限upper margin 上边，顶边upper right 右上方upper side band wave 上边带波upper side frequency 上边频upper state 上态upper state relaxation 高能态弛豫upper-hybrid-resonace absorption 上混合共振吸收upright 真立的upright image 正立像upright post 立柱upright projection 正立投影upscattering 向上散射upside 上部，上面upside down 颠倒，倒转upstage 顶级upstream 上游的，上流的upstream ionization 上游离子化upwash 上洗upwelling 喷出，涌出uranin 荧光素钠uraninite 沥青铀矿uranium (u)铀uranium glass 铀玻璃ureterscope 输尿管镜usability 使用性能usable aperture 有效孔径，可用孔径useful diameter 有效直径useful work 有效功utiliscope 工业电视装置utilization factor 利用系数utrecht solar eclipse expedition 乌得勒支日食考察uv (ultra-violet) detector 紫外[光]检测器uv dye laser 紫外染料激光器uv filter 紫外滤光片uv irradiation 紫外[线]辐照uv lamp 紫外线灯uv laser 紫外缴光器uv light (1)外光线(2)紫外[线]辐射uv photostat 紫外直接影印机(2)\紫外直接影印制品(3)紫外照相复制uv scanner 紫外扫描器uv-nitrogen laser 紫外氮激光器uv-transmitting 紫外透射的uv-visible photoemitter 紫外–可见光光电[子]发射体uv-visible spectral response 紫外–可见光光谱响应uvicon 紫外二次电子导电管uviol 透紫外[线]玻璃uviol glass 透紫外线玻璃uvioresistant 不透紫外线的uxmeter 勒克司计，照度计光电英语词汇(U) 相关内容:。

u shaped manometer u 形压力计ubitron 波动射束注入器uhf 特高频uhf band pass filter 特高频带通滤波器uhf converter 特高频变频器uhf preamplifier stage 特高频前置放大器uhf tuner 特高频党器uhf vision transmitter 特高频图象发射机uhsi 超高速集成电路uhv 超高真空ujt 单结型晶体管ulg 通用逻辑门ulsi 超大规模集成化ultimate pressure 极限压力ultimate resolution 极限分辨力ultraaudion 超三极管ultrabroad band light modulator 超宽频带光灯器ultraclean area 超净区域ultrafilter 超细过滤器ultrafine geometry 超精细几何形状ultrafine resolution 超精细分辨力ultrahigh frequency 特高频ultrahigh speed integration 超高速集成电路ultrahigh vacuum 超高真空ultrahigh vacuum evaporation 超高真空蒸发ultralarge scale integration 超大规模集成化ultralow backstreaming 超低漏泄ultralow noise microwave cryoelectronic system 超低噪声微波低温电子学系统ultrapure photoresist 超高纯度光刻胶ultrapure water 超纯水ultrashort laser pulse 超短激光脉冲ultrashort light pulse 超短光脉冲ultrashort wave transmitter 超短波发射机ultrashort waves 超短波ultrasonic bond 超声焊接ultrasonic bonder 超声焊机ultrasonic bonding 超声焊接ultrasonic cleaner 超声清洗器ultrasonic cleaning 超声清洗ultrasonic etcher 超声腐蚀装置ultrasonic frequency 超音频ultrasonic holography 超声全息照相术ultrasonic probe 超声波探针ultrasonic seal 超声封接ultrasonic soldering 超声焊ultrasonic vapor degreaser 超声蒸汽去油机ultrasonic wave 超声波ultrasonic wedge bonding 超声楔焊ultrasonic welder 超声焊接机ultrasonic welding 超声焊接ultrasonic wire bonding 超声波线焊ultrasonics 超声学ultrasound 超声ultrasound delay line 超声延迟线ultrathin membrane 超薄膜ultratrace impurity 超痕量杂质ultraudion 超三极管ultraviolet exposure 紫外线曝光ultraviolet filter 紫外线滤光器ultraviolet laser 紫外激光器ultraviolet lithography 紫外线光刻ultraviolet ozone cleaning 紫外线臭氧清洗ultraviolet projection system 紫外投影装置ultraviolet radiation 紫外线ultraviolet resist 紫外线敏感光刻胶ultraviolet spectral range 紫外光谱范围ultraviolet spectrum 紫外光谱ultraviolet sterilizer 紫外线杀菌器ultraviolet transparency 紫外透迷umbrella antenna 伞形天线unattended processing 无人处理unattended system 无人监视系统unbalance 不平衡unblanking circuit 正程增辉电路uncased component 无封装元件unclad optical fiber 无包壳光纤uncollimated rays 非准直光束uncompensated germanium 未补偿的锗unconnected gate 独立门uncontrolled multivibrator 非稳态多谐振荡器uncooled photodetector 非冷却光电探测器uncoupled lightguides 非耦合光波导uncoupled mode 非耦合模式undamped wave 无衰耗波underbunching 群聚不足undercoat 底层undercooling 过冷undercut 钻蚀undercut profile 钻蚀断面图underdevelopment 显影不足underetch 钻蚀underground antenna 地下天线underground cable 地下电缆underlayer 底层undershoot 负尖峰underwater antenna 水下天线underwater television 水下电视underwater visibility 水下可见度undistorted image 无失真图象undistorted picture 无失真图象undistorted wave 无失真波undoped region 无掺杂区undulater 波绞机undulating light 脉动光undulation effect 波动效应undulator 波纹机undulatory motion 波动uneven surface 粗糙表面unevenness 粗糙度unexcited level 未激能级unfilled level 未满能级unflatness 非平滑性uniaxial anisotropy 单轴蛤异性unidirectional aerial 单向天线unidirectional antenna 单向天线unidirectional microphone 单向传声器unidirectional pulse 单向脉冲unidirectional pulses 单向脉冲unidirectional transmission 单向传输uniform irradiation 均匀辐照uniform lightguide 均匀光波导uniform waveguide 均匀波导uniformity 均匀性uniformity of illumination 照鸣匀度unijunction transistor 单结型晶体管unilateral matching 单向匹配unilateral optical track record 单向光学轨道记录unimodal laser 单模激光器unimolecular film 单分子膜unimolecular layer 单分子层unintelligibility 不清晰度unipolar fet 单极场效应晶体管unipolar integrated circuit 单极型集成电路unipolar technology 单极工艺unipolar transistor 单极晶体管uniray 通用阵列unit 单位unit automatic exchange 内部自动电话交换机unit call 通话单位unit cell 单元unit pulse signal 单位脉冲信号unitary body 单块衬底unity magnification projection unit 单位放大投影曝光装置universal array 通用阵列universal battery system 共电制universal logic gate 通用逻辑门universal receiver 交直两用接收机universal synchronous asynchronous receiver transmitter 通用同步异步收发机universal transmission function 通用透射函数unload 放电unload cassette 卸载盒unloaded antenna 无负载天线unloaded pcb 无载印制电路板unmasked region 无掩蔽区unmodulated carrier 未灯载波unmodulated light 未灯光unpackaged chip 未封装芯片unpolarized light 非偏振光unpolarized luminescence 非偏振发光unpolarized wave 非偏振波unpopulated pcb 无载印制电路板unrestorable system 一次使用系统unsaturated gain 不饱和增益unsharp spectral line 模糊谱线unsoldering 焊开unstable blocking oscillator 不稳定间歇振荡器unstable cavity 不稳定谐振器unstable circuit 非稳定电路unstable equilibrium 不稳定平衡unstable resonator 不稳定谐振器unsteady system 不稳定系统unsupported ribbon growth 无支护带式晶体生长untriggered spark gap 非触发式火花隙untrimmed accuracy 未蝶精度untuned aerial 未党天线untuned antenna 未党天线up converter 上变频器向上变换器向上变频器增频变频器up diffusion 再扩散up integration 提高集成度upconversion 增频变频upconverter 上变频器增频变频器updated version 更新方案upper harmonics 高次谐波upper laser level 上限激光电平upper level lifetime 上能级寿命upper sideband 上边带upstream shift 逆向位移upw 超纯水uraser 紫外激光器urgent call 加急电活urgent telegram 紧急电报usable sensitivity 可用灵敏度usart 通用同步异步收发机useful power 有效功率user 用户user programmable logic 用户可编程序逻辑utilization factor 利用率uv 紫外线uv degradation 紫外线退化uv detector 紫外检测器uv emulsion 紫外线光敏乳胶uv photoemission spectroscopy 紫外线光电发射光谱学uv projection printing 紫外线投影曝光uv proximity printer 紫外线接近式曝光装置。