短語詞組短語valve e spindle 閥軸;閥主軸discharge valve spindle 放泄閥軸check valve spindle 逆止閥頂絲英語;翻譯;逆止閥頂絲;止逆閥頂絲valve with extended spindle 延伸閥桿auxiliary steam valve spindle 副汽閥柄stop valve spindle 主汽閥芯子;主汽門心子piston valve spindle 活塞閥桿whistle valve spindle [鐵路]汽笛閥桿slide valve spindle 滑閥桿;滑閥軸 返回 valve spindle