基本解釋活套法蘭詞組短語短語lap -joint flange 自由廻轉(zhuǎn)法蘭;供應(yīng)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lap joint flange更多詞組專業(yè)釋義機(jī)械工程活套法蘭