underground blasting

基本解释

Widely used in outdoor blasting and underground blasting projects with combustible gas and mineral dust explosion risk.
广泛适用于露天及可燃气和（或）矿尘爆炸危险的地下爆破工程。
The underground blasting supplies magazine is one of the important facilities, to ensure the safety production of underground mine.
井下爆炸材料库是矿井安全生产的重要保障设施之一。
The excavation technology and design parameters of a polit chamber blasting of underground drainage system in Xiaowan power station are introduced.
介绍了小湾电站右岸地下排水系统的小洞室开挖爆破技术和设计参数。