Switch should match sequence of lighting fixture control. Direction turn and speed regulatingswitch of fan should work well.
开关与灯具控制顺序相对应，风扇的转向及调速开关应正常。
2
University of California, Irvine researchers have identified the chemical switch that triggers the genetic mechanism regulating our internal body clock.
加州大学欧文分校的研究人员找出了调节我们内部的生物钟遗传机制化学触发开关。
3
A regulator of the air pump switch was developed in order to realize the automation of regulating pressure of the air pump switch.