trunk connecting relay 中继连接继电器
A switch provided at the receiving relay connects one communication channel and provides a connecting link between the communication channel and the receiving relay.
设置在该接收继电器上的一个开关连接一个通信信道，并且在通信信道和接收继电器之间提供一个连接的链路。
Apply to relay Box for alarm indicator connecting between several alarm indicator column and alarm indicator board.
用于继电器箱与多个警报指示柱，警报指示器板间的连接。
In multiple-channel scanning thermometrical system, the change of connecting resistance of tongue relay is the main factor which influences the system precision.
在多点温度巡回检测系统中，多路切换部件干簧继电器接触电阻的变化是影响系统精度的主要因素。
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