短語(yǔ)詞組短語(yǔ)smooth wall blasting technique 光麪爆破技術(shù)cushioned smooth face blasting 緩沖光麪爆破smooth controlled blasting 光麪控制爆破smooth hydraulic blasting 水壓光麪爆破smooth surface blasting 光麪爆破smooth -blasting rock layer 光爆層buffering smooth blasting 緩沖光麪爆破smooth blasting excavation 光麪爆破開(kāi)挖 返回 smooth blasting