常見例句雙語例句The protective relay is a sensing device, which senses the fault, determines its location and then send command to the proper circuit breaker by closing its trip coil.保護繼電器是一個傳感裝置，感官的過錯，確定其位置，然後發(fā)送命令關閉其旅行線圈到正確的斷路器。 返回 circuit closing device