短語詞組短語chamber control blasting 硐室控制爆破chamber toss blasting 洞室拋擲爆破chamber bulk blasting 峒室大爆破chamber loose blasting 硐室松動(dòng)控制爆破controlled chamber loose blasting 硐室松動(dòng)控制爆破chamber controlled blasting 硐室控制爆破rockplug chamber blasting 巖塞硐室爆破underwater chamber blasting 水下硐室爆破cutting chamber blasting 路塹硐室爆破 返回 chamber blasting