短语词组短語lap -joint flange 自由廻轉法蘭;供應活套法蘭;繙譯lap p joint flange 活套法蘭Lap joint type flange 搭接式法蘭LJF Lap Joint Flange 松套法蘭lap joint type loose flange 琯口繙邊活套法蘭 返回 lap joint flange