joist
US /dʒɔɪst/
UK /dʒɔɪst/
1.
擱柵, 托樑
a length of timber or steel supporting part of the structure of a building, typically arranged in parallel series to support a floor or ceiling.
:
•
The floorboards were nailed directly to the wooden joists.
地板直接釘在木製擱柵上。
•
We need to replace some of the rotten joists in the old house.
我們需要更換老房子裡一些腐爛的擱柵。