空腹桁架 [建] Vierendeel truss ; limosis truss ; open web truss

桁架梁腹 truss web

船底腹板纵桁 bottom web longitudinal

空腹桁架梁 [建] open-frame girder

空腹桁架理论 open-web truss theory

双腹板桁梁 [建] double-webbed girder

巨型空腹桁架 vierendeel megatrusses

梭形空腹钢桁架 spindle fasting steel truss

桁架腹杆结构 cancellation

桁架受压腹杆 compressed web members of truss