短語(yǔ)詞組短語(yǔ)PIN FOR VALVE 閥門用插頭metering pin carburetor valve 計(jì)量閥pin puller control valve 銷拆卸器控制閥PIN FOR DELIVERY VALVE 輸送閥用銷Cotter pin valve 開(kāi)口銷pin valve opening 針閥開(kāi)度pin type reversing valve 銷式換曏閥metering pin valve 調(diào)節(jié)針閥pin valve rising distance 針閥陞程 返回 pin valve