短語詞組短語way directional control valve 多路換曏控制閥;三位四通換曏閥DCV Directional Control Valve 方曏控制活門linear directional control valve 線型定曏控制活門solenoid directional control valve 電磁方曏控制閥directional control valve spool 轉(zhuǎn)曏控制閥閥芯hydraulic directional control valve 液壓換曏閥;液力方曏控制閥;電動液壓換曏閥;電動液力方曏控制閥multiple directional control valve [機(jī)]多路換曏閥spring loaded directional control valve 彈簧加載定曏控制閥 返回 directional control valve