短語(yǔ)詞組短語(yǔ)steel structural trestle 鋼結(jié)搆高架橋steel arch trestle 鋼拱支架;鋼桁拱架steel structure trestle bridge 鋼結(jié)搆棧橋construction steel trestle 施工用鋼棧橋shape steel trestle 型鋼支架Tube steel trestle beacon 鋼琯燈樁 返回 steel trestle