简单介绍绥电800MW机组西门子公司生产的TELEPERM ME/XP混合型DCS控制系统的各个组成部分的特点、结构和配置，及其工作方式，以供相同设计参考

Mr. President, Dr. Conant, members of the Board of Overseers, Ladies and Gentlemen: I am profoundly grateful, touched by the great distinction and honor and great compliment accorded me by the authorities of Harvard this morning. I am overwhelmed, as a matter of fact, and I am rather fearful of my inability to maintain

I come to this magnificent house of worship tonight because my conscience leaves me no other choice. I join you in this meeting because I am in deepest agreement with the aims and work of the organization which has brought us together: Clergy and Laymen Concerned about Vietnam. The recent statements of your executive committee are the sentiments of my own heart, and I found myself in full accord when I read its opening lines: \A time comes when silence is betrayal.\ And that time has come for us in relation to Vietnam

Madam President and Members of the General Assembly: When Secretary General Hammarskjold’s invitation to address this General Assembly reached me in Bermuda, I was just beginning a series of conferences with the Prime Ministers and Foreign Ministers of Great Britain and of France. Our subject was some of the problems that beset our world

Tragedy Address Ladies and Gentlemen, I'd planned to speak to you tonight to report on the state of the Union, but the events of earlier today have led me to change those plans. Today is a day for mourning and remembering. Nancy and I are pained to the core by the tragedy of the shuttle Challenger. We know we share this pain with all of the people of our country. This is truly a national loss

...And during the few moments that we have lef t, we want to have just an off-the-cuff chat between you and me -- us. We want to talk right down to earth in a language that everybody here can easily understand. We all agree tonight, all of the speakers have agreed, that America has a very serious problem. Not only does America have a very serious problem, but our people have a very serious problem

General Westmoreland, General Grove, distinguished guests, and gentlemen of the Corps! As I was leaving the hotel this morning, a doorman asked me, \Where are you bound for, General?\ And when I replied, \West Point,\ he remarked, \Beautiful place. Have you ever been there before?\

Ladies and gentlemen of the convention: My name is Geraldine Ferraro. I stand before you to proclaim tonight: America is the land where dreams can come true for all of us. As I stand before the American people and think of the honor this great convention has bestowed upon me, I recall

Lyndon Baines Johnson: \We Shall Overcome\ Mr. Speaker, Mr. President, Members of the Congress: I speak tonight for the dignity of man and the destiny of democracy. I urge every member of both parties, Americans of all religions and of all colors, f rom every section of this country, to join me in that cause. At times history and fate meet at a single time in a single place to shape a turning

1. Lesson 1 2. The barren land could produce little food. 3. The room was dark and I bumped my head against the door. 4. He devised a new method for teaching the blind. 5. My wife’s been exerting a lot of pressure on me to change my job