短語(yǔ)詞組短語(yǔ)synchronizing checking relay 同步檢查繼電器synchronizing check relay 同步校驗(yàn)繼電器automatic synchronizing relay 自動(dòng)同步繼電器;自同期繼電器lock -on relay synchronizing relay 同步繼電器 返回 synchronizing relay