《大学物理》课程PPT教学课件（二）第20章 热力学第一定律和第二定律 20.4 热力学第二定律

Part I Vocabulary Structure(20%) Section a I. Ben was quite stubborn and it was almost impossible to him of his mistakes B. recognize C. forget D. convince

Part I Vocabulary Structure(20%) Section a employee C. calculator D. device

Part I Structure(30%) Directions: In this section, there are 20 incomplete sentences. You are required to complete each one by deciding on the most appropriate word or words from the 4 choices marked A), B), C and D). Then you should mark the corresponding letter on the Answer Sheet with the size of the whole earth, the highest mountain does not seem high at all

Part I Vocabulary& Structure(20%) Section A 1. IfI _you, I would not do it. A.was B.am C.were D. be

第六章汽油发动机点火系 6.1概述 6.1.1点火系的功用 点火系的作用:将电池或发动机的低电压变成高电压(20~30kv),并按照发动机各气缸的工作次序和点火时间的要求,适时、准确地点燃气缸中的可燃混合气

一、填空(20分,每题2分) 1.对晶格常数为a的SC晶体,与正格矢R=ai+2a+2ak正交的倒格子晶面族的面指数为(),其面间距为() 2.典型离子晶体的体积为V,最近邻两离子的距离为R,晶体的格波数目为(),长光学波的()波会引起离子晶体宏观上的极化

LECTURE+ 12 RIGID BODY OYNAAICS 工 MPLICAT IONsF GENERAL ROTATIONAL OYWMICS EJLER's EQUATIN of MOTION TORQVE FREE SPECIAL CASES. PRIMARY LESSONS: 30 ROTATONAL MOTION MUCH MORE COMPLEX THAN PLANAR (20) EULER'S E.o.M. PROVIOE STARTING POINT FoR ALL+ OYwAmIcs SOLUTINS To EvlER's EQuATIONS ARE COMPLEX BUT WE CAN OEVE LOP GooO GEOMETRIC VISUALIZATION TOOLS

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20.1 Geodesics .... 20.1.1 Motivation 20.1.2 Definition ..:. 20.1.3 Governing equations 20.1.4 Two-point boundary value problem 20.1.5 Example 20.2 Developable surface