15-1光致发光及影响荧光发射因素 15-2荧光分析法 15-3磷光分析法 15-4化学发光分析法

第二部分牛顿运动定律 第一讲牛顿三定律 一、牛顿第一定律 1、定律。惯性的量度 2、观念意义,突破“初态困惑” 二、牛顿第二定律 1、定律 2、理解要点 a、矢量性 b、独立作用性:f→a,Fx→a c、瞬时性。合力可突变,故加速度可突变与之对比:速度和位移不可突变);牛顿第二定律展示了加速度的决定式(加速度的定义式仅仅展示了加速度的“测量手段”)

2、动载系数Kv 2..2 3~10为第公差组精度等级 2.( 10 1 1.6 1. 1.2 主共振区 1.0 2 4 6 8 10121116 v·Z1/100(m/s) (a)用于直齿轮

---a science which study the processes and regulations of development of human fetus.(from 1 cell(zygote) to (5-7)X1012 cells ) ---total 38 weeks: preembryonic period: before 2 weeks

三、标准齿轮传动的中心距 (a) (b) 1、保证两轮的顶隙c为标准值 2、保证两轮的侧隙为零

18-1一些概念 18-2沉淀分离法 18-3溶剂萃取分离法 18-4离子交换分离法 18-5其它分离方法

Chapter 8 Nucleus and chromosomes Learning Objectives (1)A typical nonmitotic nucleus includes several majorcomponents. (2) Nuclear envelope and nuclear pore complex. (3)The components of chromatin and packaging ofchromosome (4) Nucleolus

Pre-Reading Activities Text New Word Reading Text A: Language Points .Newspaper Reading .Exercise Check-up .Assignment

(1997.6) SI. typical S2. relatively S3. boring S4. describe S5. variety S6. normal S7. uniform S8. seven bad men jumped out, one man had a knife and we got into a fight S9. She was trying to get to the hospital, but there was a bad traffic jam S10. the baby waited to \arrive until we got to the hospital

第四章空间力系 4.1已知F1=100N,F2=300N,F3=200N,作用位 置及尺寸如图(a)所示;