bowstring beam弓弦式: bow-string梁: beam弓弦式: bow-string◇弓弦式大梁 bow-string girder; 弓弦式梁 bow-string beam; 弓弦式桥 [土] bowstring bridge弓弦式大梁: bowstring girder弓弦式桥: bowstring bridge下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:弓弦式梁，即可在微信中查询翻译
