21世紀(jì)全國(guó)高等院校機(jī)械制造及自動(dòng)化專業(yè)系列規(guī)劃教材：機(jī)電工程專業(yè)英語（第2版）
《機(jī)電工程專業(yè)英語（第2版）》共有27篇課文，主要內(nèi)容包括機(jī)械設(shè)計(jì)制造技術(shù)、機(jī)械工程材料、公差與配合、數(shù)控技術(shù)、機(jī)電一體化技術(shù)、材料成形、模具設(shè)計(jì)與制造、汽車工程和科技寫作等方面的專業(yè)英語知識(shí)。同時(shí)，為了反應(yīng)本學(xué)科的發(fā)展趨勢(shì)，又增添了微機(jī)械（MEMS）設(shè)計(jì)技術(shù)和熱管工程應(yīng)用技術(shù)方面的內(nèi)容。書后附有科技英語翻譯及寫作的簡(jiǎn)單介紹，還附有課文參考譯文。
《機(jī)電工程專業(yè)英語（第2版）》適合作為機(jī)械設(shè)計(jì)制造及自動(dòng)化、機(jī)械工程及自動(dòng)化、機(jī)電工程等專業(yè)的專業(yè)英語教材，也可以供從事機(jī)械工程各專業(yè)工作的工程技術(shù)人員參考使用。
根據(jù)最新就業(yè)行情和相關(guān)行業(yè)標(biāo)準(zhǔn)，對(duì)原版內(nèi)容進(jìn)行合理調(diào)整或重大修改，使之更能符合知識(shí)的更新，反映學(xué)科現(xiàn)代最新理論、新技術(shù)、新材料和新工藝。 定位更加準(zhǔn)確，大量增加相應(yīng)工程實(shí)例，在保證內(nèi)容反映國(guó)內(nèi)外機(jī)械學(xué)科最新發(fā)展的基礎(chǔ)上，滿足高等院校的機(jī)械類專業(yè)教學(xué)要求。 注重各學(xué)科基本理論，又注重現(xiàn)行設(shè)計(jì)方法的理論依據(jù)和工程背景，面向就業(yè)，培養(yǎng)學(xué)生創(chuàng)新能力和職業(yè)素質(zhì)。 配有大量實(shí)物照片和較多三維模擬圖表達(dá)機(jī)械設(shè)備的實(shí)體結(jié)構(gòu)和線框結(jié)構(gòu)，包括零件圖、裝配圖和爆炸圖，形象生動(dòng)，使內(nèi)容表達(dá)更加直觀易懂。 力求寫作風(fēng)格新，內(nèi)容新，使學(xué)生對(duì)教材不產(chǎn)生畏難情緒，增強(qiáng)教材的可讀性，突出實(shí)用性和可操作性。
本書第2版是在第1版的基礎(chǔ)上，吸取多所大學(xué)教師在使用本書過程中提出的諸多寶貴意見，對(duì)全書進(jìn)行修訂和補(bǔ)充。本書的主要目的是使讀者掌握機(jī)械工程專業(yè)英語術(shù)語及用法，培養(yǎng)和提高讀者閱讀和翻譯專業(yè)英語文獻(xiàn)資料的能力。
本書的主要內(nèi)容包括機(jī)械設(shè)計(jì)制造技術(shù)、機(jī)械工程材料、公差與配合、數(shù)控技術(shù)、機(jī)電一體化技術(shù)、材料成形、模具設(shè)計(jì)與制造、汽車工程和科技寫作等方面的專業(yè)英語知識(shí)。同時(shí)，為了反映本學(xué)科的發(fā)展趨勢(shì)，我們又增添了微機(jī)械（MEMS）設(shè)計(jì)技術(shù)和熱管工程應(yīng)用技術(shù)方面的內(nèi)容。書后附有科技英語翻譯及寫作的簡(jiǎn)單介紹，還附有課文參考譯文。
本書第2版共有27篇課文，每篇課文分為四個(gè)部分：Text部分是與本章主題密切相關(guān)的精讀部分，是課程中講解和學(xué)習(xí)的主體，在論述完整的同時(shí)保證一定的難度；Words and Prases部分是重點(diǎn)難點(diǎn)詞匯和短語解析；Complex Sentence Analysis部分是重點(diǎn)難點(diǎn)句子分析和相關(guān)內(nèi)容的背景分析；Exercise部分是與主題課文相關(guān)的泛讀部分和練習(xí)題，供讀者課余時(shí)間拓展知識(shí)面，鞏固所學(xué)習(xí)的內(nèi)容。
本書第2版具有一定的專業(yè)性和難度，通過對(duì)本書的深入學(xué)習(xí)，讀者可以迅速提高專業(yè)英語閱讀和寫作能力。本書適合作為機(jī)械設(shè)計(jì)制造及自動(dòng)化、機(jī)械工程及自動(dòng)化、機(jī)電工程等專業(yè)的專業(yè)英語教材，也可以供從事機(jī)械工程各專業(yè)工作的工程技術(shù)人員參考使用。
本書第2版由朱林、楊春杰任主編，鐘利萍、何法江、王麗君任副主編；參加編寫的還有趙運(yùn)才、方曉麗、田宏宇、么永強(qiáng)、匡江紅和石玉祥。
由于編者時(shí)間和水平有限，書中疏漏及不妥之處定然存在，敬請(qǐng)廣大讀者批評(píng)指正。
Lesson 1 Introduction to Mechanical Design
1.1 Text
1.2 Words and Phrases
1.3 Complex Sentence Analysis
1.4 Exercise
1.4.1 Translate the following paragraphs
1.4.2 Choose the proper answer to fill in the blank and translate the sentences
Lesson 2 Mechanisms
2.1 Text
2.2 Words and Phrases
2.3 Complex Sentence Analysis
2.4 Exercise
Lesson 3 Machine Parts（I）
3.1 Text
3.2 Words and Phrases
3.3 Complex Sentence Analysis
3.4 Exercise
3.4.l Translate the Following paragraphs
3.4.2 Write the name of the following parts and brief description of the roller chain on the structure and assembly relations
Lesson 4 Machine Parts （11）
4.1 Text
4.2 Words and Phrases
4.3 Complex Sentence Analysis
4.4 Exercise
Lesson 5 Engineering Graphic in the Third-angle Projection
5.1 Text
5.2 Words and Phrases
5.3 Complex Sentence Analysis
5.4 Exercise
Lesson 6 Introduction to CAD/CAM/CAPP
6.1 Text
6.2 Words and Phrases
6.3 Complex Sentence Analysis
6.4 Exercise
Lesson 7 A Discussion on Modern Design Optimization
7.1 Text
7.2 Words and Phrases
7.3 Complex Sentence Analysis
7.4 Exercise
Lesson 8 Using Dynamic Simulation in the Development of Construction Machinery
8.1 Text
8.2 Words and Phrases
8.3 Complex Sentence Analysis
8.4 Exercise
Lesson 9 Engineering Tolerance
9.1 Text
9.2 Words and Phrases
9.3 Complex Sentence Analysis
9.4 Exercise
Lesson 10 Numerical Control
10.1 Text
10.2 Words and Phrases
10.3 Complex Sentence Analysis
10.4 Exercise
Lesson 11 Introduction to Heat Pipe Technology in Machining Process
11.1 Text
11.2 Words and Phrases
11.3 Complex Sentence Analysis
11.4 Exercise
Lesson 12 Introduction to Material Forming
12.1 Text
12.2 Words and Phrases
12.3 Complex Sentence Analysis
12.4 Exercise
Lesson 13 Material Forming Processes
13.1 Text
13.2 Words and Phrases
13.3 Complex Sentence Analysis
Lesson 14 Introduction to Mould
14.1 Text
14.2 Words and Phrases
14.3 Complex Sentence Analysis
14.4 Exercise
Lesson 15 Mould Design and Manufacturing
15.1 Text
15.2 Words and Phrases
15.3 Complex Sentence Analysis
15.4 Exercise
Lesson 16 Heat Treatment of Metal
16.1 Text
16.2 Words and Phrases
16.3 Complex Sentence Analysis
16.4 Exercise
Lesson 17 Virtual Manufacturing
17.1 Text
17.2 Words and Phrases
17.3 Complex Sentence Analysis
17.4 Exercise
Lesson 18 Fluid and Hydraulic System
18.1 Text
18.2 Words and Phrases
18.3 Complex Sentence Analysis
18.4 Exercise
Lesson 19 Product Test and Quality Control
19.1 Text
19.2 Words and Phrases
19.3 Complex Sentence Analysis
19.4 Exercise
Lesson 20 Introduction of Automobile Engine
20.1 Text
20.2 Words and Phrases
20.3 Complex Sentence Analysis
20.4 Exercise
Lesson 21 The Automobile Components
21.1 Text
21.2 Words and Phrases
21.3 Complex Sentence Analysis
21.4 Exercise
Lesson 22 Mechatronics
22.1 Text
22.2 Words and Phrases
22.3 Complex Sentence Analysis
22.4 Exercise
Lesson 23 Industrial Robots
23.1 Text
23.2 Words and Phrases
23.3 Complex Sentence Analysis
23.4 Exercise
Lesson 24 An Army of Small Robots
24.1 Text
24.2 Words and Phrases
24.3 Complex Sentence Analysis
24.4 Exercise
Lesson 25 Introduction to MEMS
25.1 Text
25.2 Words and Phrases
25.3 Complex Sentence Analysis
25.4 Exercise
Lesson 26 Dialogue-At CIMT
26.1 Text
26.2 Words and Phrases
26.3 Complex Sentence Analysis
26.4 Exercise
Lesson 27 How to Write a Scientific Paper
27.1 Text
27.2 Words and Phrases
27.3 Complex Sentence Analysis
27.4 Exercise
附錄A 關(guān)于科技英語翻譯
附錄B 怎樣寫科技論文的英文摘要
附錄C 課文參考譯文
參考文獻(xiàn)
Lesson 4 Machine Parts （II）
Fastener
Fasteners are devices which permit one part to be joined to a second part and， hence， theyare involved in almost all designs.
There are three main classifications of fasteners， which are described as follows：
（1）Removable. This type permits the parts to be readily disconnected without damagingthe fastener. An example is the ordinary nut-and-bolt fastener.
（2）Semi permanent. For this type， the parts can be disconnected， but some damage usuallyoccurs to the fastener. One such example is a corer pin.
（3）Permanent. When this type of fastener is used， it is intended that the parts will never bedisassembled. Examples are riveted joints and welded joints.
The importance of fasteners can be realized when referring to any complex product. In the case of the automobile， there are literally thousands of parts which are fastened together top roduce the total product. The failure or loosening of a single fastener could result in a simple nuisance such as a door rattle or in a serious situation such as a wheel coming off. Suchpossibilities must be taken into account in the selection of the type of fastener for the specific application.
Nuts， bolts， and screws are undoubtedly the most common means of joining materials. Since they are so widely used， it is essential that these fasteners attain maximum effectiveness at the lowest possible cost.
An ordinary nut loosens when the forces of vibration overcome those of friction. In a nut and lock washer combination， the lock washer supplies an independent locking feature preventing the nut from. loosening. The lock washer is useful only when the bolt might loos enbecause of a relative change between the length of the bolt and the parts assembled by it. [2]This change in the length of the bolt can be caused by a number of factors-creep in the bolt， loss of resilience， difference in thermal expansion between the bolt and the bolted members， or wear. In the above static cases， the expanding lock washer holds the nut under axial load and keeps the assembly tight. When relative changes are caused by vibration forces， the lock washer is not nearly as effective.
Rivets are permanent fasteners.
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