硬岩 meaning in English
hard rock
hard stone
hardrock
Examples
- Research on hardrock step control blasting technology
硬岩台阶控制爆破技术研究 - Aubema - product range - impact hammer crushers
Aubema -供货范围围-硬岩锤式破碎机 - Study and practice of raising explosive efficiency in hard rock
提高硬岩巷道爆破效率的研究与实践 - Hammer mills hammer mills impact hammer mills
硬岩锤式破碎机 - Feed materials : hard rock , different types of ore , limestone and gypsum
给料：硬岩矿砂石灰岩石膏。