機械工程專業(yè)英語第2課

1、1TECHNICAL ENGLISHMECHANICAL ENGINEERINGYAN NU2 In the metric system，power is measured in terms of watts and kilowatts. The watt is the power to do one joule of work per second. The joule is a small unit of work, approximately three-quarters of a foot-pound. 公制單位中， 功率用瓦特和千瓦來表示。 in terms of 1.就而言, 從方

2、面說來 He referred to your work in terms of high praise. He thought of everything in terms of money.2.用的話，以的措辭；從角度來講 3.根據(jù)，依據(jù) 4.以為單位；換算，折合 3 One horsepower is equal to 746 watts. The kilowatt, a more widely used term, equals a thousand watts or approximately 1 horsepower in the English system. The Newto

3、n is a unit equal to the force necessary to accelerate one kilogram one meter per second. 3142 MECHANICAL ENGINEERINGmathematical： adj. 1. 數(shù)學的, 數(shù)學上, 2. 精確的, n. mathematics, ad ， -ly 數(shù)學上 mimtikl economical i:knmikl ： a. 經(jīng)濟的，節(jié)約的。 benefit benifit : n, 利益； v， 受益，有利于 mankind mnkaind n，人類 solver slv n， 解決

4、者 devisedivaiz v， 想出; 計劃; 設計; 發(fā)明 solution n， technological concept knsept n， 1. 概念; 觀念; 想法2. 總的印象；發(fā)明；創(chuàng)造 broad br:d 5 disciplinedisiplin ， n. 訓練，學科，專業(yè) innovator inveit(r) n. 1. 改革者2. 刷新者 Conception knsepn n. 1. 思想, 觀念, 概念 2. 構想, 設想3. 懷孕 analysis nlsis n. 1. 分析2. 分析報告3. 分析結果 4. 分解， 5. 要略；梗概；綱領 utiliza

5、tion ju:tlazen n. thermosicence thermology :mldi 熱學 thermodynamics :mudainmiks n. 熱力學 Mechanics mikniks 1. 力學;機械學2. 機件;過程;方法 2 MECHANICAL ENGINEERING6熱力學熱力學（英語：thermodynamics）熱學的宏觀理論，是從能量轉(zhuǎn)化的觀點研究物質(zhì)的熱性質(zhì)，闡明能量從一種形式轉(zhuǎn)換為另一種形式時應遵循的宏觀規(guī)律。熱力學是根據(jù)實驗結果綜合整理而成的系統(tǒng)理論，它不涉及物質(zhì)的微觀結構和微觀粒子的相互作用，也不涉及特殊物質(zhì)的具體性質(zhì)，是一種唯象的宏觀理論，具有高

6、度的可靠性和普遍性。Conservation law of energy 能量守恒定律7 transfer Emphasis emfsis n. 1. 強調(diào)，著重 2. 強調(diào)，加重語氣，重讀 3. 重點，重要(性)，重大，重要意義 4. 有力，著力，強烈，力量 5. 鮮明，顯著突出 Conversion Mechanism meknizm 1. 機械裝置 2. 構造, 機制 3. 辦法, 技巧, 途徑 ； 4. 機械；機械部分 kinematics kinimtiks n. 1. 運動學 commodity kmditi n. 1. 商品, 貨物 2. 有用的東西 3. 農(nóng)產(chǎn)品；礦產(chǎn)品； 4.

7、 有價值的物品 Instrumental instrumentl 1. 為器樂譜寫的; 用樂器演奏的 2. 有幫助的, 起作用的,起重要作用 2 MECHANICAL ENGINEERING8 For the benefit ：為的利益 Bend the law for the benefit of relatives or friends. transportation vehicle place emphasis on We should place emphasis on this problem . have a hand in 參與, 與有關系 Do you think she ha

8、s a hand in it ?2 MECHANICAL ENGINEERING92 MECHANICAL ENGINEERING Engineering is an applied science. The engineer has a knowledge of the mathematical and natural sciences gained by study, experience, and practice which is applied to develop ways to utilize, economically, the materials and forces of

9、nature for the benefit of mankind. * be applied to：適用于,應用于,施加于,用來表示,與接觸 A multimeter can be applied to measure current, resistance and voltage. * 工程師具有從學習和實踐中得來的數(shù)學和自然科學知識，運用它研究利用自然界的材料和動力的途徑，為人類造福。 102 MECHANICAL ENGINEERING The engineer is a problem solver, using knowledge and ability to devise or

10、improve the solution to technological problems. The engineer is concerned with learning why a system or concept operates and how it might be directed toward useful, beneficial products. * be concerned with：關心，涉足，參與,干預 direct - toward： 112 MECHANICAL ENGINEERING Perhaps the broadest of the engineerin

11、g disciplines, mechanical engineering is concerned with the application of science and technology in the solution of the countless problems facing our increasingly complex world. * be concerned with：關心，涉足，參與,干預 122 MECHANICAL ENGINEERING Mechanical engineers are innovators, developing devices and sy

12、stems to perform useful services. They are involved in the conception, planning, design, analysis, testing, production and utilization of facilities, systems, and machines. are involved in ： 使參與陷入, 牽扯到 Dont involve me in your quarrel. 不要把我卷進你們的爭吵中。 Dont involve yourself in unnecessary dispute. 不要把自己

13、卷入無謂的爭論中。facility：fsiliti n. 1. 工具, 設施, 設備, 2.（機器等的）特別裝 置；特色 ; 3.（供特定用途的）場所 4.天資，才能，天賦 132 MECHANICAL ENGINEERINGThey are concerned with the production and use of energy, with combustion processes, environmental control，industrial pollution ，materials processing and handling, the design of transport

14、ation vehicles and propulsion systems, and the safety of products. The field of mechanical engineering may be divided into two major areas: thermo-sciences and design.142 MECHANICAL ENGINEERING In the thermo-sciences area, the mechanical engineer is concerned with thermodynamics, fluid mechanics and

15、 heat transfer- the behavior of solids, liquids, and gases - in engineering applications. Emphasis is placed on energy conversion systems，energy analyses, the design and development of engines and propulsion systems and the use of energy. * thermodynamics：:mudainmiks 熱力學 152 MECHANICAL ENGINEERING I

16、n the design area, mechanical engineers are concerned with the development of new and improved laborsaving devices and machines, They work toward the development of devices to transmit and control mechanical power for useful purposes. Emphasis is placed on machine design mechanisms, kinematics and a

17、utomatic controls. * work toward：為而工作 ,努力做到 The committee will work toward the establishment of a school for the handicapped. Kinematics: 運動學162 MECHANICAL ENGINEERINGMechanisms engineers，for example, have had a hand in the design of a great variety of commodities. they have also been instrumental i

18、n the development of machines to produce these commodities. * have a hand ：參與， 插手， 與-有關。If you have a situation like that, everyone always says Can you lend a hand? or Can you give a hand? or We need helping hands. A long tongue have a short hand . 17 Most simply, engineering is the art of directing

19、 the great sources of power in nature for the use and the convenience of man. In its modern form engineering involves men, money, materials, machines, and energy. 最簡單的說，工程學就是一門引導人們利用自然中的巨大資源為人類帶來方便的藝術?，F(xiàn)代工程涉及人，財，材料，機械和能量。 convenience: -store 便利店 directing：adj. showing the way by conducting or leading; imposing direction on; Who is directing the team? 18It is differentiated from science because it is primarily concerned with how to direct to useful and economical ends the natural phenomena which scientists discover and formulate into acceptable theories. 它和科學不同，主要關注如何引導自然現(xiàn)象來達到有用和經(jīng)濟的目的，科學家們則主要