prick post双柱桁架: queen post truss立杆: pole setting; upright stanch ...倒双柱桁架: inverted queen post truss; reversed queen-post girder双柱桁架: queen post truss; queen truss双柱桁架梁: double-strut trussed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:双柱桁架立杆，即可在微信中查询翻译
