rock mines meaning in Chinese
石雷
Examples
- These are useful in hard rock mining where high brisance, high shattering effects, are desired .
这种炸药，对需要高威力、高破碎效应的坚硬岩石矿，是有用的。 - Study on disaster pre - warning system for underground rock mining
金属矿地下开采采场灾害预警系统的研究 - Research on support method base on natm theory and soft rock mine roadway deformation law
理论及软岩巷道变形规律的支护方法研究 - Study on support technology for very soft broken rock mine roadway in wannian coal mine
万年煤矿极松软破碎岩体巷道支护技术研究 - Instability cause analysis and combined support technology of high stressed soft rock mine roadway
高应力软岩巷道失稳原因分析与联合支护技术