truck longitudinal sill构架: carcass; panel work; frame; ...纵: release; set free; let go梁: beam车架纵梁。: solebar桁架纵梁: trussed stringer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:构架纵梁,即可在微信中查询翻译