"It's draining and de-energizing when people are in an environment and they just have to salute and not be themselves," he says.

他说：“当人们处在一个只需要敬礼而不需要做自己的环境中时，会让人精疲力竭、失去活力。”

When start up a 3-phase asynchronous motor, it is generally realized by energizing or de-energizing 2 to 3 contactors in a certain time order.

介绍三相异步电动机起动时，通常按照一定的时序接通或关断2到3台接触器来实现电动机的起动。