Part I Warming Up A Words and Phrases You are going to hear some important dates in email history. Supply the missing dates and words Great Dates in Email History Date: ________________________ Leonard Kleinrock, a UCLA computer science professor, sends the ___________________to a colleague

1．控制器的构成与控制功能 构成：微机板μp，输入、输出接口板Input interface，Output interface,变换器控制板Con Control，机内电源Inter power supply 、调压板、通讯板

The Market System Relies on Supply and Demand to Solve the Trio of Economic Problems

Summary Theory Modeling approaches

Driving Capacitive Loads Cable Driving Single-Supply Considerations Application Circuits

Elasticity . . . … is a measure of how much buyers and sellers respond to changes in market conditions … allows us to analyze supply and demand with greater precision

In a free, unregulated market system, market forces establish equilibrium prices and exchange quantities. While equilibrium conditions may be efficient, it may be true that not everyone is satisfied

JB=Beam ion (and neutralizer electron current) JE=cathode emitted current Jc=ion current to cathode- potential surfaces JD=current through disch. power supply

市场需求理论的现代理论 是以Alfred Marshall (1842-1924)建立的体系 为依据的，他的代表作是 1890年的Principles of Economics《经济学原 理》

物流系统控制手段 一、反馈控制:根据结果 二、前馈控制:根据预测 三、过程控制:控制突发事件