英语翻译1.There are four ways for transmitting power from the el

英语翻译
1.There are four ways for transmitting power from the electric motor to the spindle.
2.The major advantages of the transistor are used in electronic circuits are light weight small space,low power comsuption.
3.The amount of heat given out by the heater increases in direct proportion to the length of time the heater is on.
4.Every crane has a certain lifting capacity ,ranging form a few tons to many hundred of tons.
5.Observe in unaccelerated reference frames,Newton’s frist two laws hold.