短語詞組短語electromagnetic slide valve 電磁滑閥electromagnetic change valve 電磁換曏閥way electromagnetic control valve 三位四通電磁控制閥electromagnetic proportion valve 電磁比例閥electromagnetic changeover valve 電磁轉換閥electromagnetic distributing valve 電磁配壓閥electromagnetic gas valve [油氣]電磁氣閥electromagnetic hydraulic valve 電磁液壓閥 返回 electromagnetic valve