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机械工程专业英语第2课精品.ppt

发布:2018-04-22约7.56千字共20页下载文档
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TECHNICAL ENGLISH MECHANICAL ENGINEERING YAN NU 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. 公制单位中, 功率用瓦特和千瓦来表示。 in terms of 1.就…而言, 从…方面说来 He referred to your work in terms of high praise. He thought of everything in terms of money. 2.用…的话,以…的措辞;从…角度来讲 3.根据,依据 4.以…为单位;换算,折合 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 Newton is a unit equal to the force necessary to accelerate one kilogram one meter per second. 2 MECHANICAL ENGINEERING mathematical: adj. 1.?数学的, 数学上, 2.?精确的, n. mathematics, ad , -ly 数学上 [m?θi’m?tik?l ] economical [i:k?’n?mik?l ]: a. 经济的,节约的。 benefit [’benifit] : n, 利益; v, 受益,有利于 mankind [m?n’kaind] n,人类 solver [’s?lv?] n, 解决者 devise[di’vaiz] v, 想出; 计划; 设计; 发明 solution n, technological concept [’k?nsept] n, 1.?概念; 观念; 想法2.?总的印象;发明;创造 broad [br?:d] discipline[’disiplin] , n. 训练,学科,专业 innovator[’ in?veit?(r)] n. 1.?改革者2.?刷新者 Conception [k?n’sep??n] n. 1.?思想, 观念, 概念 2.?构想, 设想3.?怀孕 analysis [?’n?l?sis] n. 1.?分析2.?分析报告3.?分析结果 4.??分解, 5.?要略;梗概;纲领 utilization [’ju:t?la?’ze???n] n. thermosicence thermology [θ?:’m?l?d?i] 热学 thermodynamics [’θ?:m?udai’n?miks] n.?热力学 Mechanics [mi’k?niks] 1.?力学;机械学2.?机件;过程;方法 2 MECHANICAL ENGINEERING 热力学(英语:thermodynamics)热学的宏观理论,是从能量转化的观点研究物质的热性质,阐明能量从一种形式转换为另一种形式时应遵循的宏观规律。热力学是根据实验结果综合整理而成的系统理论,它不涉及物质的微观结构和微观粒子的相互作用,也不涉及特殊物质的具体性质,是一种唯象的宏观理论,具有高度的可靠性和普遍性。 Conservation law of energy 能量守恒定律 transfer Emphasis [’emf?sis] n. 1.?强调,着重 2.?强调,加重语气,
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