floor joist meaning in Chinese

楼板搁棚
楼板搁栅
楼板梁
楼地板搁栅
楼盖搁栅
木楼板龙骨
钻台托梁

The floor joist was cracked and fractured, but no debris was deposited in the basement, as the subflooring remained intact .
地板托梁破裂折断，但是因地板下面安然无恙在地下室并未落下碎片。
Adhesives for floor joist
地板搁栅用粘合剂
Structural use of timber - recommendations for the calculation basis for span tables - domestic floor joists
建筑用木材.第7部分:以指距表为计算基准的推荐标准.第1节:家用地板搁栅