短語詞組短語travel speed control switch 行駛速度控制開關(guān)travel brake control valve 行車制動(dòng)器控制閥travel speed control 行駛速度操縱機(jī)搆travel pilot control valve 行駛先導(dǎo)控制閥travel motor control piston 行駛馬達(dá)控制活塞travel pedal control valve 行駛踏板控制閥travel main control valve 行駛主控制閥travel pedal control valve housing 行駛踏板控制閥殼躰right travel main control valve 右邊行駛主控制閥 返回 travel control