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武科大机械专业英语Lesson23.ppt

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武科大机械专业英语Lesson23.ppt
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Lesson 23. Introduction to Tribology,TerminologyText tour,2019/4/15,1,《机械工程专业英语教程》,Terminology,2019/4/15,2,《机械工程专业英语教程》,Tribology The science of the mechanisms of friction, lubrication, and wear of interacting surfaces that are in relative motion,rub 摩擦,磨损,Terminology,2019/4/15,3,《机械工程专业英语教程》,Thermodynamics Thermodynamics deals with the relationships between heat and other forms of energy.,,《机械工程专业英语教程》,2019/4/15,Pneumatic 1. Of or relating to air or other gases 空气的,气体的:属于或关于空气或其它气体的 2. Of or relating to pneumatics 气体力学的:属于或关于气体力学的 3.Run by or using compressed air: 气动的:通过或用压缩空气来运行的,,4,Terminology,2019/4/15,5,《机械工程专业英语教程》,Boundary lubrication 边界润滑。,lining 衬层,涂层,覆盖。,Tread pattern 轮胎花纹。,Tribology is defined as the science and technology of interacting surfaces in relative motion, having its origin in the Greek word tribos meaning rubbing.,《机械工程专业英语教程》,2019/4/15,Text tour,6,It is a study of the friction, lubrication, and wear of engineering surfaces with a view to(着眼,考虑到) understanding surface interactions in detail and then prescribing(提出) improvements (改进,改善)in given applications.,《机械工程专业英语教程》,2019/4/15,Text tour,7,The work of the tribologist is truly interdisciplinary(跨学科的), embodying(包括)physics, chemistry, mechanics, thermodynamics, and materials science, and encompassing(包括)a large, complex, and interwinded(交织,交叉)area of machine design, reliability, and performance (性能,表现)where relative motion between surfaces is involved.,《机械工程专业英语教程》,2019/4/15,Text tour,8,Lesson 15 Introduction to tribology摩擦学概论,It is estimated that approximately one-third of the world’s energy resources in present use appear as friction power in one form or another. This represents a staggering [‘stæɡəriŋ](惊人的,压倒一切的)loss of potential power for today’s mechanized society.,Lesson 15 Introduction to tribology摩擦学概论,The purpose of research in tribology is understandably (可理解地)the minimization and elimination of unnecessary waste at all levels of technology(各种技术) where the rubbing of surfaces is invol
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