短語(yǔ)詞組短語(yǔ)roadway y support 巷道支架roadway bolt support 巷道錨桿支護(hù)roadway support parameters 巷道支護(hù)蓡數(shù)roadway -side support 巷旁支護(hù)coal roadway support 煤巷支護(hù)roadway support parameter 煤巷支護(hù)蓡數(shù)framed roadway support 棚式支架soft rock roadway support 軟巖巷道支護(hù) 返回 roadway support