范文:Electric Power is a most convenient clean safe.And electric power system is a network of electrical components used to supply,transmit and use electric power.电力是最方便、清洁、安全的。而电力系统是用于供电、传输和使用电力的电气元件网络。An example of an electric power system is...
Edison (1847~1931) Edison,Thomas Alva American inventor. To the creation of factory laboratories, technology development and to open up avenues of scientific research in close connection with the name lowered history. February 11, 1847 in the Ohio Mailan a Dutch immigrant family. Octob...
注意时态规则,ten years ago 用一般过去时,now用一般现在时就可以了,注意写时上下内容相似只是句型不同,突出不同点就很好了。电的生产过程极为复杂,需经过发电、输电、配电以及用电等多个过程。其中发电指的是生产电能的地方,例如:火电单位、水电单位等;输电是指利用高压线路完成电力输送的操作;...
英语作文:I can’t give you any advice due to the current endemic situation. You should call the local administration office and they will arrange you to go to a specified clinic.Dear Sir or Madam,My name is Li Ming, working as a product manager. I got the news that your ...
1882年,在纽约珍珠街创办世界第二座公用火电厂,建立起纽约市区电灯照明系统,成为现代电力系统的雏形。电照明的实现,不仅大大改善了人们生产劳动的条件,也预示着日常生活电气化时代即将到来。1883年,爱迪生在试验真空灯泡时,意外地发现冷、热电极间有电流通过。这种现象后来称为爱迪生效应,成为电子管和电子工业的基础。