对异步电机的启动过程进行了分析，对普通异步电动机用于驱动重载启动设备而造成频繁损坏的机理进行了合理的解释。
The starting process of asynchronous motor is analyzed and the mechanism of normal asynchronous motors frequently damaged by driving heavy load starting devices is explained reasonably.
Timer 有许多 schedule() 重载，它们提示某一任务是一次性还是重复的，并且有一个启动的 TimerTask 实例。
Timer has a number of schedule() overloads, indicating whether a given task is to be one-shot or a repeating, and takes a TimerTask instance to fire.
重载荷时能够启动多个进程是。
Ability to start more processes to cater the heavy load Yes.
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