Direct drive control relay.

可直接驱动控制继电器。

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Special control switch setup operates like a solenoid valve through internally mounted control relay.

通过内部安装控制继电器，特殊控制开关进行操作就如同电磁阀一样。

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Electromagnetic valve is used to control the effects of electromagnetic, the main control by the control relay.

电磁阀是用电磁的效应进行控制，主要的控制方式由继电器控制。

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