航海英语154翻译
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航海英语1-30题[1]______, as the chemical extinguisher agent, should be used for an electric fire.A. dry chemical or foamB. foam or soda acidC. carbon dioxide or foamD. carbon dioxide or dry chemicalKEY: D二氧化碳或干粉灭火器作为化学灭火器,用于扑灭电器火灾。
[2]______: A room on or near the bridge provided with the necessary fittings and furniture for the handling and stowage of charts and where the chronometers are placed.A. Captain’s cabinB. Chief Officer’s lockerC. ChartroomD. Pilot’s cabinKEY: C在驾驶台或附近提供必要的装卸设备或用具和海图的存放和天文钟布置的房间叫做海图室。
[3]______:The main center-line structural member, running fore and aft along the bottom of a ship, sometimes referred to as the backbone.A. FrameB. DeckbeamC. StringerD. KeelKEY: D在船舶底部沿首尾向铺设有时提及当做主骨架的主要首尾结构是龙骨。
[4]______:the vertical distance measured on the vessel’s side amidships from the load water line to the upper side of the freeboard deck or a point corresponding to it.A. BuoyancyB. FreeboardC. DraftD. DisplacementKEY: B船中部从载重水线垂直测量到干舷甲板上边缘或相应的点的距离叫干舷。
第三节航海出版物(灯标表、天文表、海员手册、大洋航路图等)neap英音:[ni:p]美音:[nip]名词n. 小潮形容词 a. 小潮的不及物动词vi. 渐趋向小潮及物动词vt. 由于小潮使搁浅topography英音:[tə'pɔgrəfi]美音:[tə'pɑgrəfɪ]名词n. 1.地志;地形图2.地形;地形学;地形测demolish英音:[di'mɔliʃ]美音:[dɪ'mɑlɪʃ]及物动词vt. 毁坏,破坏;拆除destroy英音:[dis'trɔi]美音:[dɪ'strɔɪ]及物动词vt. 毁坏,破坏ruin英音:['ruin]美音:['ruɪn]及物动词vt. 使毁灭;毁坏spoil英音:[spɔil]美音:[spɔɪl]及物动词vt. 损坏;糟蹋;搞糟0001. __D____ are published for the correction of Admiralty Charts.[7]下列哪项出版物用来改正英版海图A.Admiralty Sailing Directions 英版航路指南B.Admiralty List of Signals 英版信号表C.Mariner's Handbook航海员手册D.Admiralty Notices to Mariners英版航海通告0002. ___C___ gives a description of the combined Cardinal and Lateral Buoyage system including textual and diagrammatic explanations of the five types of marks;lateral;cardinal,isolated danger;safe water and special marks.下列哪项出版物用文字及图式详细地介绍了方位标及侧面标系统(包括5种标志:侧面标、方位标、孤立危险物标、安全水域标及特殊标)。
航海英语中英文1. The funnel is a casing used for exhaust pipes from the engines.烟囱是套管用于排气管的发动机。
2. The satellite antenna is housed in a plastic dome for weather protection.人造卫星天线装置在塑料圆顶,用来预测天气.3. The galley is where delicious food is cooked.厨房是制作美味食物的地方.4. The messroom(军舰或海军基地的)食堂 is where the crew eat their meals.食堂是全体船员用餐的地方.5. The anchor is used to moor停泊, 系泊(船只) 使停泊;使固定the ship to the seabed海底,海床 to keep it stationary不动的; 静止的,固定的;不可移动的.锚是用来固定停泊的船只在海底, 使其不可移动.6. The bulbous bow is a round-shaped underwater part in the front of the ship. The purpose is to create less friction摩擦; 摩擦力with water so that the ship moves more easily.船鼻首是圆形水下部件, 位于船前部, 目的是制造更少的水摩擦力, 使船只可以更易于移动.7. The bow thruster is placed in the front of the ship under the water,which eases berthing (船舶的)停泊位或锚位or manoeuvering sideways斜着, 斜向一边at slow speed.船首推进器装置在船的前方, 位于水下,从而缓和泊位或往斜方向操纵时速度减慢。
通道01商船运载货物。
有些还设计载客。
他们可以作为衬垫。
这些受雇于一个固定的时间表定期航线。
的名单,他们的到来和离开的日期提前公布,他们不论全职或航行。
内衬可以被归类无论是深海衬垫或短海客轮。
前者主要开展集装箱货物漂洋过海的世界,后来进行货物集装箱或常规较短的航线。
渡轮也被归类为衬里。
这些跨渠道和狭窄海域为乘客和车辆提供每天或每周的服务。
几艘船仍受雇于客轮。
他们不仅运载乘客,但也有一些货物从欧洲到北美和远东的航线。
如今,客运业是非常小的,游船客轮通常作为一部分的一年。
001.The深海衬垫________。
A.主要开展集装箱货物B.主要进行传统的货物C.为乘客和车辆提供每天或每周的服务D.乘轮船渠道和狭窄海域。
002.The内衬________。
A.总是B.帆航行,甚至经常不充分C.始终航行在镇流器D.将无法航行,如果不充分003.A列表衬垫________的到来和离开日期。
A.将每周公布B.将发布航行时,不论是全职或没有,从欧洲到北美和远东C.将不会被公开,即使他们航行满载D.出发前出版004.It暗示的推移,________。
A.客船小B.所有客船将在不久的将来进行一些货物C.它是没有必要的客轮航行在固定的时间D.集装箱船,应随身携带一些乘客通道02如今,大多数商船运载货物,建。
他们主要经营的流浪汉。
这些船只没有定期航线上航行或保持一个固定的时间表,但那里是他们进行货物就业。
可以归类为深海的流浪汉或短海流浪汉流浪汉。
许多被归类为杯垫。
这些层对沿海航线和内河港口的河流。
传统流浪汉货物的干散货,但也有一些设计进行一般货物。
商船大量的专用船舶。
这些是设计来进行特定类型的货物。
有几种类型的专门容器。
最常见的是油轮。
他们所拥有的大型石油公司或由独立经营。
两个其他类型的日益重要的液体散货船,化学品船和液化天然气(LNG)的运营。
005.The深海流浪汉________。
A.进行散货和件杂货跨越公海B.建立运载乘客C.主要杯垫D.专门的容器006.The杯垫________。
aboard 在船上to be adrift 漂流to anchor, to ride at anchor 抛锚,停泊anchorage 停泊to call at a port 停泊某港停泊某港to moor, moorage 碇泊to lie at anchor 碇泊,抛着锚moorings 系泊处roadstead 抛锚处,碇泊处to cast anchor 抛锚to drop anchor 抛下锚riding lights 停泊灯to bail, to bale 汲水,戽水beacon 浮标buoy 浮筒floating dock 浮堤jetty, breakwater, mole, pier 防波堤dike 堤compass 罗盘binnacle 罗盘箱bound for 驶往cabotage 沿海贸易to calk, to caulk 填补船缝to careen, careen 修理cargo 货载to charter 包租costal traffic, costal trading 沿岸贸易to coast 沿海岸航行cruise 往返航行day's run 日航程dead calm 风平浪静to transship 换船derelict 弃船to disembark (人)离岸,上岸to dismast 砍断桅杆distress signal 遇难信号to capsize 倾覆to sink 沉没沉没to ground 触礁,搁浅搁浅to run aground 搁浅搁浅shipwreck 失事,遇难遇难wreck 破损,毁坏毁坏wreckage 残骸残骸jetsam 船只遇难时为减轻负担而丢弃的货物船只遇难时为减轻负担而丢弃的货物 jettison 遇难时为减轻负担而丢弃的货物遇难时为减轻负担而丢弃的货物 flotsam 漂在海上的难船残骸或其船货漂在海上的难船残骸或其船货 dockyard 造船厂造船厂draught 一网的捕鱼量一网的捕鱼量to dredge 疏浚疏浚dredge, dredger 挖泥船挖泥船dry dock 干船坞干船坞to embark 乘船乘船fathom line 等深线等深线freight, freightage 货运货运to freight 运输,海运海运to furl 卷起(帆) squall 暴风暴风gale 大风大风hurricane 飓风飓风head wind 顶头风,逆风逆风storm 风暴风暴luff, to luff 抢风行驶抢风行驶to tack 抢风调向抢风调向windward 顶风,向风向风leeward 在下风方向在下风方向to lie to 逆风几乎不能前进逆风几乎不能前进in full sail 满帆满帆to land 抵岸抵岸loading dock, quay, wharf 码头码头wharfage 码头(总称) dock 船坞,码头码头port 港口,左舷左舷port of call 沿途停靠的港口沿途停靠的港口outer port, outport 大港外的独立小港大港外的独立小港port of registry 船籍港船籍港 harbour 海港海港 (美作:harbor) harbour entrance 海港入口海港入口to heave to 使船停驶使船停驶 navigable 正航行的正航行的to sail 扬帆航行扬帆航行to navigate 驾驶(船舶) fleet 船队船队crew 全体船员全体船员helmsman 舵手舵手sailer 水手水手navy 海军海军mate 大副大副pilot 领航员领航员knot 结,绳结绳结landing stage 栈桥栈桥lead 测深锤测深锤leak 漏to launch 使下水使下水launch, launching 下水下水life saving 救生救生lighthouse 灯塔灯塔radio beacon 无线电导航台无线电导航台 radar 雷达雷达log, logbook, ship's log 航海日志航海日志 log line 计程绳计程绳mile 海里海里oar 桨to pitch 上下颠簸上下颠簸pitching, pitch 颠簸颠簸to roll, rolling 颠簸,摇摆摇摆list 侧倾侧倾to list 使侧倾使侧倾to put in, to put into port 驶入驶入to put off 驶出,出发出发to row 划船划船to set a float 漂浮漂浮to weigh anchor 起锚起锚to set sail 出海,扬帆出海扬帆出海to ship 乘船,用船运输用船运输shipbreaker 拆船业者拆船业者ship broker 船舶经纪人船舶经纪人shipowner 船主船主shipyard 船厂船厂signal flare 信号火箭信号火箭slip, slipway, shipway 船台船台to sound 测深测深sounding line 测深索测深索larboard 左舷左舷starboard 右舷右舷to steer 操舷,驾驶驾驶to stow 装载装载stowage 装载,装载物装载物to take the helm 操航,驾驶驾驶tonnage 吨位吨位to tow, to tug 拖,拖曳拖曳towage 拖曳,拖曳费拖曳费to unfurl 展帆,打开帆打开帆to unship 从船上卸货从船上卸货to veer 解开缆索解开缆索wake 船迹,航迹航迹watch 值班,值更值更to weather 平安通过,通过岬角的上风侧通过岬角的上风侧GOOD DAY SIRS, In order to rectify our deficiencies which arising by Statoil vetting inspection dated 9TH May 2006 at Huelva,Spain, please find our actions as follows: 1. the velles could not check or sample segregated ballast without removing numerous bolts. === suggestion, office supply suitable and completed hatch on board, it to be fitted on present hatch of ballast tanks at workshop by crew. if CCS approval. otherwise, waiting for forthcoming dock. 2. No familiarization programme/ training of crane operations. === please find attached file which is form ref: certificate of competency to operate lifting appliances.pls iuuse procedure and authorization to ship to do this work by master. 3. 5 hooks on various cranes with damage retaining clip. === the damage retaining clip will be repaired before arrival loading port. 4. only the bollards had welded SWL, pedestal rollers had no marking. === we hard find this information on board, pls provide pedestal rollers SWL. 5. No records of regular inspection and testing of chain blocks. 6. No inspection and maintenance of slings. === All chain blocks and slings have been listed and filed for recording their serial number, SWL,certificate and inspection date etc. but chain block on board had no certificate and it should be tested by shore service annualy. pls arrange accordingly at suitable port. 。
一、甲板部工作用语1. Hoist/lower the “H” flag, please!请升起/降下“H”旗!2.Hoist the Chinese national flag on the fore mast, please! 请在前桅升起中国旗3.Hoist/lower one black ball, please! 请挂上/降下一个黑球4.Hoist a red light over the white one. 在白灯上面挂上一只红灯5.Hoist/lower the anchor ball. 升起/放下锚球6.Switch on /off the anchor lights. 打开/关闭锚灯7.Please open the front window. 请开启前面的窗户8.Clean these windows. 把些窗户清洗干净9.Open/ close the starboard window/port door, please! 请打开/关上右舷窗户/左舷门10. Bring the pilot's bag to the bridge.把领航员的包拿到驾驶室11. Lift up the pilot's bag from the pilot boa t. 把领航员的包从领航艇上吊上来。
12.Lower the pilot ladder on the port/starboard side. 把领航梯放在左/右舷。
13.The pilot ladder is too high. 领航梯太高了。
14.The pilot ladder is about two meters above the water.领航梯约在水面上两米。
15.Lower the pilot ladder a little more. 把领航梯再往下放一点。
16.Lower/pick up the pilot ladder on starboard /port side. 放下/收上右/左舷的领航梯。
第六章 34-54,第七章第九节 93-98,第八章99-110,第十章 128-144,第十一章 145-163,第十三章 174-192 第一节第二节各类证书的内容、展期与更新各类报表(海事、海关、检疫、边防等)航海图书资料( 16)第二章航海图书资料(1-16)第一节第二节第三节第1组航路指南进港指南航海出版物(灯标表、天文表、海员手册、大洋航路图等) 1. __D____ are published for the correction of AdmiraltyCharts. A.Admiralty Sailing Directions B.Admiralty List of Signals C.Mariner's Handbook D.Admiralty Notices to Mariners 英版《航海通告》出版用于英版海图的改正。
2.___C___ gives a description of the combined Cardinal and Lateral Buoyage system including textual and diagrammatic explanations of the five types of marks;lateral;cardinal,isolated danger;safe water and special marks. A.Ocean Passages for the World(NP136) B.Symbols and Abbreviations used on Admiralty Charts,Chart 5011 C.IALA Maritime Buoyage System(NP735)D.The Mariners Handbook(NP100)国际航标协会海上浮标系统给出有关包括文字和图表解释的方位标和侧标(五种航标:侧标,方位标,安全水域,特殊标志)的描述。
航海英语汉译英200句1.Red Rose 轮不能修理受到的损坏. MV Red Rose cannot repair damage.2.Red Rose 轮处在危急状况中. MV Red Rose in critical condition. 3.Red Rose 轮将抛弃货物以脱浅. MV Red Rose will jettison cargo to refloat.4.Red Rose 轮需要拖轮协助. MV Red Rose requires tug assistance.5.Red Rose 轮只能慢速航进. MV Red Rose can only proceed at slow speed. 6.按规定,只能由一名驾驶员分配食物和饮用水.Provisions and drinking water will be distributed by an officer only as per the regulations.7.保持镇静,没有理由恐慌,救生艇员完全知道应该怎样做.Keep calm.There is no reason to panic.The lifeboatmen know exactly what to do.8.被我船救起的人员是永乐轮的船员.The person picked up by my ship is crew of MV Utopia.9.不管天气如何,穿戴好保暖\长袖衬衫\结实的鞋和帽子,不要穿高跟鞋.Put on warm clothing,long-sleeved shirts,strong shoes and head covering whatecer the weather.No high-heeled shoes.10.不能抛弃IMO危险品货物.Do not jettison IMO-Class cargo.11.不要返回房间取你的物品.Do not return to your cabin to collect your property.12.不要进入救生筏,进入救生筏的命令将由驾驶台或驾驶员发出.Do not enter the liferafts.The order to enter the liferafts will be given from the bridge or by the officers.13.不要让儿童攀登或坐在船舶的栏杆上.Never let children climb or sit on the ship's rails.14.不要忘记个人证件和眼睛,如果需要带上药片.Do not forget personal documents,your spectacles and medicine if necessary.15.船舶不得在分道通航制区域内抛锚.No vessels shall anchor in a traffic separation schemes.16.船舶应尽可能避免在分道通航制区域内或其端部附近抛锚.a vessel shall so far as practicablc avoid anchoring in a traffic separation scheme or in areas near its terminations.17.从停车到启动需要多长时间?How long does it take to start engine from stopped?18.带好你的救生衣和毛毯.你将在床下找到你的救生衣.Take your lifejacket and a blanket.you will find your lifejacket under your bed.19.当发出7短声1长声的全船紧急警报时,所有的旅客必须到你们的集合点.When the general emergency alarm is sounded,which consists of seven short blasts and one prolonged blast,all passengers have to go to their assembly station.20.带好你的救生衣和毛毯,救生衣存放在房间内你们的床下和集合处.Take your lifejacket and a blanket with you.lifejackets are stored in your cabins under your beds and at your assembly stations.21.建议你上船后试穿救生衣.You are encouraged to try on your lifejacke when entering the lifeboat.22.当叫到你的名字时,请大声回答"到".When your name is called out,please answer loudly "here".23.当进入救生筏后应立即保持入口畅通,坐在救生筏内.Clear the entranc of the liferaft immediately after entering.Sit down in the liferaft immediately.24.当进入救生艇时不要相互推挤,应立即坐在艇内.Do not push each other when entering the lifeboat.Sit down in the lifeboat immediately.25.当你听到连续不断的1长声和1短声的弃船警报时,请采取与全船紧急报警相同的行动.When you hear the abandon ship alarm,which consists of one prolonged and one short blast repeated continuously,please act in the same manner as under the general emergency alarm.26.舵工应复述所有舵令,值班驾驶员应保证舵令被准确立即执行.所有舵令均应执行到另有命令为止.all wheel orders given should be repeated by the helmsman and the officer of the watch should ensure that they are carried out correctly and immediately.all wheel orders should be held until countermanded.27.儿童必须始终受到照看.children must be kept under permanent obervation.28.飞机将在 1930UTC到达遇难船处,以协助搜寻.aircraft ETA at the vessel in distress is 1930 utc to assist in search.29.附近的船只已经得知我们的情况.vessels in the vicinity have already been informed of our situation.30.搁浅后red rose轮正在下沉.mv red rose is sinking after grounding.31.海上救助协调中心已经得知我们的情况.the maritime resuce co-ordination center have already been informed of our situation.32.火势是否得到控制.is the fire under control.33.火势未能得到控制,我需要co2灭火器.fire is not under control,and irequire co2 extinguishers.34.机舱失火,我轮需要泡末灭火器.fire is in engine-room,and i require foam extinguishers.35.机舱有人监控还是由驾驶台控制?is engine-room manned or is engine on bridge control?36.集装箱内装有多种杂货,应用专门的吊车装上或卸下装箱船.there are many kinds of cargoes loaded in the container,which should be loaded on or discharged from the ship with special crane.37.简介穿着要求及至集合点需携带的物品.briefing on how to dress and what to take to assembly stations.38.what noice is required to reduce from full sea speed to manoeuvring speed?将海上全速转至操纵速度需多长时间通知?39将救生衣套过你的头,将带子收紧,将带子绕在腰部并在前面打结.pull the lifejacket over your head-tighen the strings well-pull the strings around your waist and tie in front.40.change radar to relative head-up.将雷达换成首向上相对显示.41.将首尾撇缆备妥.have heaving lines ready forward and aft.42.make fast aft tug alongside on the port side将拖船系在左舷.43.救援船预计在1930utc到达事故地点.ETA of rescue ship at distress position is 1930 utc.44.rescue craft are coming to our rescue and the crew members are requested to escort helpless passengers.救助船正来救助我们,请船员保护孤弱的旅客.45.no dangerous targets on radar.雷达上没有危险物标.46,雷达有盲区吗?has radar any blind sectors?47.the dunnage board between two ties of cargoes will not only prevent the movement of the lower tie of cargo,but also distribute evenly the load of the upper tie of cargo onto the surface of the lower tie.两层货物之间的衬垫板可以防止下层货物的移动,可以使上层货物的重量均匀地分布在下层货面上.48.螺旋桨的侧推效应很强吗?is turning effect of propeller very strong?49.condition of persons picked up is bad,maybe already died.落水人员的情况不好,可能已经死亡.50.没有援救red rose轮能继续航行.MV Red Rose can proceed without assistance.51.............育龙轮..........................Yu-Long ...............................................52.每人都应严格按驾驶员或船员给出的示范动作行事,如果需要,船员将会帮助你。
大连海事大学英语3080题库154翻译[1]Which signal of the followings is not provided with onboard lifeboat?A.Rocket parachute signalsB.Buoyant smoke signalsC.Hand flare signalsD.Self-igniting signals答案:D下列哪种信号在救生艇上不配备?自动点火信号[2]According to IMO regulations,______shall be posed outside lifeboat?A.the retro-reflective tapesB.the reflective tapesC.the flashing bandsD.the anti-flashing bands答案:A根据国际海事组织规则,反光带应该安放在救生艇外面[3]Which one of the following is not required on survival crafts?A.Anti-seasickness medicineB.Immersion suitsC.axesD.lifebuoys答案:D下面哪一个在在救生筏上不需要---救生圈[4]Have the safety belts for _______been examined?A.total enclosed lifeboatsB.totally enclosing lifeboatsC.totally enclosed lifeboatsD.total enclosing lifeboats答案:C全封闭式救生艇的安全带已经检查过了吗?[5]The fire-protected lifeboats are found_____________.A.in satisfactorily conditionB.satisfactorilyC.satisfactoryD.satisfied答案:C防火救生艇被发现是良好的(词根satisfy)[6]We test the water spray fire protection system of fire-protected lifeboats every 3 months,___the abandon ship drill.bining withbined withbining tobined to答案:B我们每三个月测试防火救生艇的喷水防火系统,连同弃船训练。
[7]Are your lifeboats fitted with_______?A.cargo wiresB.topping liftC.guiding linesD.tripping line答案:D你的救生艇配备有锚爪拉索吗?[8]Painting on _________is prohibited because it will weaken its sensibilityA.ship shellB.exterior of winchesC.hydrostatic release unitD.hold ladders答案:C在静水压力释放器上涂漆是被禁止的,因为它将会减弱灵敏度[9]Where shall the key to co2 room be kept?A.In master's cabinB.In third office's cabinC.In a break-glass-type enclosure conspicuously located adjacent to the roomD.In a locked locker conspicuously located adjacent to the room答案:C二氧化碳室的钥匙放在哪里?位于临近房间的“击碎玻璃”面卡的惹人注意的的墙壁上[10]The fireman's outfit consists of________.A.Safety lamp,protective clothing,rigid helmet,breathing apparatusB.Emergency escape breathing device,fire damper,extinguishersC.Firefighting equipment, portable extinguishers,fire dampersD.Fire hoses,fire nozzles,fire hydrants,fire pumps答案:A消防员装备由安全灯,防护衣,钢盔,呼吸器组成。
[11]Which one of the following is incorrect about Mercator projection?A.It projects a sphere onto a cylinder.B.Because the resulting distance between latitudes are constantly increasing,it is alsocalled progressive projectionC.It can always give true distancesD.It advantage is that longitudes and latitudes are at right angles, which makes it easy toread true bearings答案:C关于莫卡托投影下面哪项不正确,它总是能提供真实的距离[12]Why do distances always have to be measured from the nearest scale on a Mercator chart?A.Because it is the most efficient wayB.Because it varies for each latitudeC.Because it varies with the change of longitudeD.Because it is the most straight line.答案:B为什么在莫卡托海图上距离总是由最近的比例测量,因为它与每个纬度成比例[13]What is ship's heading? ship's heading is the direction_______.A.the vessel is pointing.B.the vessel is traveling relative to landC.the vessel is traveling relative to groundD.the vessel is drifting答案:A什么是航向?航向是船舶指示的方向[14]How long would 15 minutes of longitude be at a latitude of 60 degrees North?A.30 n mB.60 n mC.15 n mD.7.5 n m答案:D在北纬60度15分经度是多长?7.5海里[15]Which one of the followings is incorrect about magnetic compass?A.The magnetic compass is compulsory on my vesselB.The magnetic compass is prone to errorC.The magnetic compass is always placed inside steel constructionsD.The magnetic compass needs to be calibrated to compensate for local magnetic distortion答案:C关于磁罗经下面哪项是不正确的?磁罗经总是放在刚性结构里面[16]Which one of the followings is correct regarding the use of gyrocompass?A.Gyrocompass does not have to be started before sailing.B.Gyrocompass must be stopped when vessel alongside a berthC.Gyrocompass needs to be checked from time to timeD.Gyrocompass is not influenced by the latitude and ship's motion答案:C关于旋转罗盘的用途下面哪项正确?旋转罗盘需要经常被核查[17]What may affect the accuracy of sounding with echo sounder?A.Sea bottomB.Ship's speedC.Speed of currentD.Water temperature and density答案:D什么会影响回声探测仪的精度?水的温度和密度[18]What often happens when using echo-sounder at river estuary where a layer of fresh water lies on the top of denser salt water?A.A scattering layer appears.B.Echo sounder stops working.C.shallow water appears.D.Nothing abnormal happens.答案:A当回声探测仪使用于一层淡水位于高密度海水之上的河口时将发生什么?出现散射层[19]Regarding the use of GPS, which one of the followings is incorrect?A.GPS is the most accurate global system today.B.Its use is still under the U.S. Department of De-fence's controlC.DGPS is more accurate than GPSD.GPS can provide a real-time position under any condition答案:D关于GPS的用途,下列哪项是不正确的?GPS能在任何条件下提供实时的位置[20]Without doubt the radar is a highly important navigation aid. But duty officer shallaware that_____when using it.A.Its range reading is more accurate than its bearing readingB.A low-lying coastline with a long, flat beach will show up properly on the radarC.Radar is only aimed at collision avoidance.D.The use of radar is necessary only when visibility is restricted.答案:A毫无疑问雷达是一种非常重要的助航设备。