command relay circuitry 指令继电控制线路
If using relay circuitry, we could create this AND function by wiring three relay contacts in series.
如果使用继电器电路，我们可以通过串联接三个继电器来创造一个大气压。
Design the CAN bus address encoder, communication terminal digital display circuit, control relay circuit, LNK501 switching power supply chip circuitry.
设计了基于CAN总线的地址编码器，通信总站的数码显示电路，控制继电器电路，LNK501开关电源芯片电路。
Relay logic control is used in old planer, and its circuitry is complicated, so the malfunction rate is high, and it is difficult to find the malfunction out.
老式龙门刨床的电控部份采用继电器逻辑控制，线路复杂，故障率高，查找故障困难。
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