第15章机械传动系统的方案设计和原动机选择 15.1机械传动系统的方案设计 15.2原动机的选择 15.3机械控制系统简介

2.1平面连杆机构的类型 2.2平面连杆机构的工作特性 2.3平面连杆机构的特点及功能 2.4平面连杆机构的运动分析 2.5平面连杆机构的运动设计 2.6空间连杆机构简介

10.1作用在机械上的力及机械的运转过程 10.2机械的等效力学模型 10.3机械运动方程式的建立及求解 10.4机械的速度波动及调节方法 10.5飞轮设计

第1章机构的组成和结构 机构:具有确定运动的实物组合体 1.1机构的组成 1.2机构运动简图 1.3机构具有确定运动的条件 1.4机构的组成原理和结构分析

Atomic Structure All natural and most synthetic substances on earth are made from the ninety naturally occurring chemical elements. An atom is the smallest particle into which an element can be divided while still retaining the chemical characteristics of that element (fig 3. 1). The nucleus, at the center of the atom contains one or more particles with a positive electrical charge(protons fif and usually some particles of similar mass that have no charge(neutrons

Chapter One Nitrogen Family(Group V) Central contents 1. Know the general properties of elements of the nitrogen group and inert electron pair effect 2. Know the reactions of ammonia, understand the thermal decomposition trend of ammonium salts 3. Know the properties of nitrous acid and nitrites; understand the structure of nitric acid and nitrate radical; understand the thermal decomposition trend of nitrates

8-1引言 8-2边界层的基本概念 8-3边界层的运动微分方程式 8-4边界层中的各种厚度 8-5边界层的动量方程式和摩擦切应力 8-6光滑平板上的层流边界层

3-1 Preface 3-2 Methods to Describe Fluid Motion 3-3 Basic Concepts of Fluid Motion 3-4 Continuity Equation 3-5 Motion Differential Equation of Ideal Fluid 3-6 Bernoulli Equation and Its Application 3-7 System and Control Volume 3-8 Momentum Equation 3-9 Moment of Momentum Equation

1-1 Introduction 1-2 Fluid Particle and Continuous Medium Hypothesis 1-3 Density, Specific Volume and Relative Density of Fluid 1-4 Compressibility and Expansion of a Fluid 1-5 Fluid Viscosity 1-6 Forces acting on a Fluid Exercises of Chapter 1

Section 12.1 Introduction and Assumptions 引言和假定 a plate is a body bounded by two closely spaced parallel planes and one or more prismatical surfaces normal to the planes