Joist

[dʒɒɪst] or [dʒɔɪst]

解释:

(noun.) beam used to support floors or roofs.

手打:萨拜娜--From WordNet

解释:

(n.) A piece of timber laid horizontally, or nearly so, to which the planks of the floor, or the laths or furring strips of a ceiling, are nailed; -- called, according to its position or use, binding joist, bridging joist, ceiling joist, trimming joist, etc. See Illust. of Double-framed floor, under Double, a.

(v. t.) To fit or furnish with joists.

录入:基思

同义词及近义词：

n. Small floor-timber.

校对:玛拉

解释:

n. the timbers to which the boards of a floor or the laths of a ceiling are nailed.—v.t. to fit with joists.

编辑:桑德拉