Each row is also coupled to each column through the relay contact leakage resistance and capacitance.
每行还通过继电器触点的漏泄电阻和电容耦合到每一列。
Use relays, contactor, button, air switch and travel switch etc low-voltage constitute control circuit called relay contact control circuit.
使用继电器、接触器、按钮、空气开关、行程开关等低压电器构成的控制电路称为继电接触控制电路。
The check is in the series of coil and four-way reversing valve control relay contact resistance increases, the bad, the contacts the voltage reduced.
经查是与四通阀线圈串联的控制继电器触点接触不良,电阻增大,致使电压降低。
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