scat rig架: frame; rack; shelf; stand平口焊管架: gresshopper焊管: pipe welding; pipewelding; tube welding; welded pipe; welded tube管架: pipe frame; pipe support搭焊管: lap welded pipe; lap welded seam; lap-welded pipe下載手機詞典可隨時隨地查詞查翻譯