汽車專業(yè)英語(yǔ)

1、書名：汽車專業(yè)英語(yǔ)ISBN： 978-7-111-37171-7作者：劉海雄出版社：機(jī)械工業(yè)出版社本書配有電子課件汽車專業(yè)英語(yǔ) 高職高專 ppt 課件Part Automobiles SummaryUnit 2汽車專業(yè)英語(yǔ) 高職高專 ppt 課件TextFigure 2-1 Automobile Exhausts汽車專業(yè)英語(yǔ) 高職高專 ppt 課件New Words and Phrasesmagnitude mgnitju:d n. 大小，重要 nitrogen naitrdn n. 氮 hydrocarbon haidruk:bn n. 碳?xì)浠衔颽ccumulate kju:mjuleit

2、 v. 積聚，堆積sewage sju:id n. 臟水，污水dispose dispuz v. 處理，處置，銷毀enact inkt v. 制定constituent knstitjunt n. 成分，構(gòu)成物crankcase krkeis n. 曲軸箱toxic tksik a. 有毒的汽車專業(yè)英語(yǔ) 高職高專 ppt 課件noxious nks a. 有害的，有毒的 lean li:n a. 瘦的，貧乏的fragility frdiliti n. 脆弱，虛弱 elimination i,liminein n. 除去，消除，淘汰stringent strindnt a. 迫切的，嚴(yán)厲的man

3、date mndeit v. 命令，要求carbon monoxide 一氧化碳catalytic converters 催化式排氣凈化器lead compounds 先導(dǎo)化合物汽車專業(yè)英語(yǔ) 高職高專 ppt 課件Notes1 In addition, rubber (which wears away from tires), motor oil, brake fluid, and other substances accumulate on roadways and are washed into streams, with effects nearly as serious as thos

4、e of untreated sewage.此外，（從汽車輪胎上磨損下來(lái)的）橡膠、車用機(jī)油、制動(dòng)液和其他物質(zhì)積聚在路面上并最終被（車用機(jī)油）沖刷進(jìn)河流里，并帶來(lái)的嚴(yán)重后果不亞于未經(jīng)處理的污水。2 To some extent this difficulty is solved by adding recycled exhaust gas the fuel mixture, thus avoiding the oversupply of oxygen that favors formation of nitrogen oxides.從某種程度上講，只有將廢氣加燃料混合氣中再循環(huán)才能解決這個(gè)難題，

5、這樣可避免過(guò)度供應(yīng)有助于產(chǎn)生氮氧化物的氧氣。汽車專業(yè)英語(yǔ) 高職高專 ppt 課件3 The fragility of the catalysts used in these systems required the elimination of lead compounds previously used in gasoline to prevent engine knock.由于這些排氣裝置中催化劑的不穩(wěn)定性，以前加在汽油中的防震的先導(dǎo)化合物就必須淘汰。4 . as with the elimination of lead, measures taken to control air pol

6、lution have a negative impact on fuel efficiency.正如先導(dǎo)化合物淘汰的結(jié)果一樣，防止空氣污染的措施對(duì)燃料使用率有負(fù)面影響。汽車專業(yè)英語(yǔ) 高職高專 ppt 課件Exercises. Answer the following questions according to the text. 1. What environmental problems are due to automobile? 2. What is automobile exhaust gas made up of? 3. On what conditions will carbo

7、n monoxide be produced? 4. To control carbon monoxide and hydrocarbons in the automobile exhaust, what measures should be taken? 5. Whats the purpose mix gasoline with ethanol?汽車專業(yè)英語(yǔ) 高職高專 ppt 課件. Mark the following statements with T(true) or F(false) according to the text.1. Scrap automobiles are ea

8、sy to dispose nowadays. 2. Hydrocarbons are toxic, while nitrogen oxides are not. 3. The conditions that produce minimum emission of hydrocarbons tend to reduce emission of nitrogen oxides. 4. Measures taken to control air pollution have an active impact on fuel efficiency. 汽車專業(yè)英語(yǔ) 高職高專 ppt 課件Transla

9、ting Skills科技英語(yǔ)翻譯方法與技巧科技英語(yǔ)翻譯方法與技巧It 的用法的用法1. it 作代詞作代詞1）it作無(wú)人稱代詞。2）it作人稱代詞。The zener diode maintains the voltage across its terminals by varying the current that flows through it. 穩(wěn)壓二極管通過(guò)改變流過(guò)它的電流來(lái)維持穩(wěn)壓二極管的電壓。（這里的it是指穩(wěn)壓管）汽車專業(yè)英語(yǔ) 高職高專 ppt 課件2. it 作形式主語(yǔ)作形式主語(yǔ)1） it代替不定式的句型有：it is ( was ) +形容詞+不定式 it+謂語(yǔ)動(dòng)詞+不

10、定式例如：It requires power to drive machines. 開(kāi)動(dòng)機(jī)器需要?jiǎng)恿Α?）it代替主語(yǔ)從句的句型有：it is +形容詞+主語(yǔ)從句It is certain that 是確定的. It is desirable that 是理想的it + 謂語(yǔ)動(dòng)詞的被動(dòng)態(tài) + 主語(yǔ)從句It is reported that據(jù)報(bào)道 It is generally recognized that 大家公認(rèn)為It is supposed that假設(shè) It is assumed that 假定例如：It has been found that a force is needed to

11、 change the motion of a body.人們發(fā)現(xiàn)，要改變一個(gè)動(dòng)物的運(yùn)動(dòng)（狀態(tài)）需要加外力。It is + 名詞 + 主語(yǔ)從句It is a pity that 遺憾的是 It is common knowledge that 常識(shí)是It + 不及物動(dòng)詞+主語(yǔ)從句It seems that 好像是 It turns out that 顯然，It now appears that 現(xiàn)在開(kāi)來(lái)3. it作形式賓語(yǔ)作形式賓語(yǔ)1） it代替動(dòng)詞不定式短語(yǔ)。When we want to measure very small currents we find it convenient t

12、o use milliamperes and microamperes. 當(dāng)要測(cè)量很小的電流時(shí)，我們覺(jué)得用毫安和微安是比較方便的。2） it代替賓語(yǔ)從句The effects we have just discussed make it apparent that there is a means of converting mechanical energy into electrical energy.由剛才的討論結(jié)果可以很明顯地看出，存在一種將機(jī)械能轉(zhuǎn)化為電能的方法。4. it用于強(qiáng)調(diào)句型用于強(qiáng)調(diào)句型It is in the form of alloys that metals are

13、often used in industry.在工業(yè)中就是經(jīng)常以合金的形式使用金屬。Reading MaterialGear MechanismNames and Symbols Of Different Gear Parts1. Number of Teeth 2. Addendum circle, Dedendum circle3. Tooth Thickness. The Width of the Keywall, Teeth Space4. Reference Circle5. Tooth Addendum, Tooth Dedendum, Whole DepthCorrect Mes

14、hing Conditions of the Involute Straight Tooth Column GearFigure 2-2 The names and symbols of different gear partsFigure 2-3 The proper meshing condition and the condition of involutes gears continuous transmissionNew Words and Phrasessymbol simbl n. 符號(hào)，標(biāo)志，象征 addendumdendmn .齒輪的齒頂gear gin . 齒輪，傳動(dòng)裝置

15、dedendumdidendmn.齒輪的齒根columnklmn .柱，圓柱，柱形物 externalekst:nln .外部a .外部的，外用的 randomrndma，任意的，隨機(jī)的n .隨意，隨機(jī)internalint:nla .國(guó)內(nèi)的，內(nèi)部的 radiusreidisn .半徑circumferenceskmfrnsn，圓周，周圍profileprufailn .輪廓formulaf:mjuln .公式 artificially,:tifiliad .人工的，人為的modulusmdjulsn .率，系數(shù)，模數(shù) standard stndda .標(biāo)準(zhǔn)的meshme v .嚙合 ipsi

16、lateralipsiltrla .同側(cè)的，在同一側(cè)的involuteinvlju:t n .漸伸線，漸開(kāi)線 modulimd,lain .模（模件，基本單位），模數(shù)該詞為modulus的復(fù)數(shù)形式profileprufail n .輪廓intersect,intsektv .貫穿，和相交，交叉transmissiontrnsmin n .傳輸，傳送 respectivelyrispektivliad .各自地，分別地ratioreiun .比，比率straighttooth 直齒 radial distance 徑向距離extemalgear 外齒輪 teeth space 齒距internal wheel 內(nèi)齒輪 arc length 弧長(zhǎng)teeth bar 齒條 to