短語(yǔ)詞組短語(yǔ)arched -girder 拱形梁arched brace girder 拱桁式arched d girder 拱形梁double annular arched -girder support system 雙環(huán)梁支護(hù)體系arched girder parabola 拱梁拋物線stiffened arched girder 加勁拱梁arched girder with tieback 帶拉桿的拱形桁架arched girder load sharing 拱梁分載arched girder composite 拱梁組合 返回 arch girder