queen-trussed beam双柱: queen post桁: purlin构: construct; form; compose加强梁: stiffening beam; stiffening ...双柱桁沟加强梁: queen trussed beam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:双柱桁构加强梁,即可在微信中查询翻译