4.1 光盘技术的发展与应用 4.2 CD_ROM光盘系统 4.2.1 光盘制作原理与方法 1.光盘驱动方式与光道结构 2.信息存储原理与调制编码 3.光盘制作的基本过程 4.2.2 CD_ROM的物理存储格式 1.CD_ROM盘片的物理结构 2.数据的扇区结构和帧结构 3.一组典型数据计算

4.1非线性电路的基本概念与非线性元件 4.1.1非线性电路的基本概念 电路是若干无源元件或(和)有源元件的有序联结体它可以分为线性与非线性两大类

4.1 概述 4.2 机械式传感器 4.3 电阻传感器 4.4. 电感式传感器 4.5 电容式传感器

一、例题精解 【例题4.1】有一三相电路如图4.1所示,负载为星形联接,电源为三角形联接

4.1 Staff training programme including records 4.1.1 All employees should be informed in writing of their legal obligations and the company's policy on personal hygiene prior to commencing work, with periodic updates as necessary. It is recommended that a standard induction course explaining the relevant legislation is designed and used by all QA managers for new staff

北京大学：《高等代数》课程教学资源（讲义）第四章 线性空间与线性变换 4.1 线性空间的基本概念 4.1.4 线性空间的基变换，基的过渡矩阵 4.2子空间与商空间 4.2.1 线性空间的子空间的定义

4.1 环的定义 4.2 环的零因子和特征 4.3 除环和域

4.1齿轮传动机构的类型、特点和应用 4.1.1齿轮传动机构的类型

Chapter 4 Website design 4.1 General Design of e-Business website 4.1.1 Defining the task Once you have decided to hire [COMPANy], the first step is to define the project very carefully and very thoroughly. It is critical to put down on paper what is and isn't included for the agree-to price. We call this the\Statement of Work\and include it as part of our proposal. For us to prepare this document, we're going to have a lot of questions to ask. If you haven,'t done so

4.1概述 4.2力学实验与材料性能