短語(yǔ)詞組短語(yǔ)current overload relay 電流過載繼電器current regulating relay 電流調(diào)整繼電器alternating current electromagnetic relay 交流電磁繼電器current balanced relay 電流平衡繼電器dirct current electromagnetic relay 直流電磁繼電器current balancing relay 電流平衡繼電器current delay relay 電流延遲繼電器over current time relay 過電流時(shí)間繼電器current detecting relay 電流検出継電器 返回 current relay