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。
A regulator of the air pump switch was developed in order to realize the automation of regulating pressure of the air pump switch.
为了实现气泵开关的自动调压，研制了气泵开关调压机。
Butterfly valve is also called a flap valve, is a simple structure of the regulating valve, but also can be used for low pressure pipeline medium switch control.
蝶阀又叫翻板阀，是一种结构简单的调节阀，同时也可用于低压管道介质的开关控制。
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