短語(yǔ)詞組短語(yǔ)blasthole bit 炮眼鉆頭blasthole space 炮眼間距blasthole charger 炮眼裝藥器blasthole plug 炮孔堵塞slim blasthole 小孔徑超深孔perimeter blasthole 周邊眼blasthole parameters 藥孔參數(shù)blasthole method 深孔爆破開(kāi)采法deep blasthole [礦業(yè)]深炮眼 返回 blasthole