短語詞組短語drain system valve 排水系統(tǒng)閥Drain with valve 排水閥Turbine Drain Control Valve 汽輪機疏水控制drain stop valve 泄水截止閥;排水管路停止閥drain n valve 排水閥;放泄閥drain fill valve 注泄閥門main drain fuel valve 主燃油閥torpedo tube drain stop valve 魚雷發(fā)射管泄水閥Main steam Drain Control Valve 主汽疏水控制 返回 drain valve