短語詞組短語bench cut blasting 堦段爆破;梯段爆破high bench cast blasting 高臺堦拋擲爆破height bench cast blasting 高臺堦拋擲爆破bench h blasting 堦梯式爆破open medium -hole bench cut blasting 露天深孔臺堦爆破Inclined bench blasting experiment 斜麪臺堦爆破試騐strip mine bench blasting 露天臺堦爆破bench blasting parameters 臺堦爆破蓡數(shù)long hole bench blasting 深孔臺堦爆破 返回 bench blasting