roof timbering顶板支护;顶板支架
timbering cost支架费
antidetonation timbering[矿业] 抗震加强支架
false timbering临时支架
wooden timbering木支架
composite timbering混合支架
close timbering[建] 密闭支撑;木板墙;密闭支撑
Racked timbering加撑支架;斜木撑
pin timbering[矿业] 锚杆支护法
N(名词) timbers collectively (总称)木材