relay circuitry

基本解释

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。
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Scanner mainframes usually have a built-in digital I/O port for use with external digital circuitry, such as relay drivers, interlock switches, etc.
扫描仪主机通常提供一个内置数字I/O端口用于外部数字电路，例如继电器驱动、联锁开关，等。
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。