1.
Optimization of drilling and blasting parameter of fracture rock
破碎矿岩凿岩爆破参数优化方法探讨
2.
Huangshilao gold mine belongs to the extra unstable ore deposit of which, the ore? rock masses are broken and spongy with high soil containing rate.
黄狮涝金矿矿体含泥率高，矿岩体松软破碎，属极不稳固的难采矿体。
3.
The main mineralized types are quartz vein type and alteration pattern with fracture zone.
主要矿化类型有石英脉型和破碎带蚀变岩型。
4.
Research on Repair Support of Fracture Zone in Steep Layer in Taiping Coalmine;
太平矿急倾斜破碎围岩巷道修复支护研究
5.
DESIGN STUDY ON A PROTECTING STRUCTURE FOR A LIMESTONE CRUSHER
某石灰岩矿石破碎站防护结构设计研究
6.
Support of Technology Mining Gateway with Mining Dynamic Broken Surrounding Rocks in Wangzhuang Coal Mine
王庄煤矿动压破碎围岩回采巷道支护技术
7.
Consisting of broken rock, coal, or ore moved from its place of origin.
碎屑状的由从开采地移来的破碎的岩石、煤块或矿物组成的
8.
Gold ore occurs within the spilite tectonccla-stic belt and bears a close relation to altered pyrite.
金矿化产于细碧岩构造破碎带内,与蚀变黄铁矿关系最为密切。
9.
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。
10.
Study on the Roadway Floor Heave Mechanism and Control Technology of Soft and Fragmental Surrounding Rock in Zhuxianzhuang Coal Mine;
朱仙庄煤矿松软破碎围岩巷道底鼓机理及控制技术研究
11.
Study on the Ground Pressure Behavior of High-seam Fully Mechanized Face Based on Sound Emission in the Breakage Rock Environment
破碎围岩环境下基于声发射的大采高工作面矿压显现研究
12.
Construction Technology of Small-section Tunnel in Crumbly Strata of Yangshan Mining Area
陇南文县阳山矿区破碎岩层小断面坑道施工技术
13.
Study on Rock-breaking Rule in Deep Wells and Rock-breaking Fractal Mechanism;
深井岩石破碎规律及破碎的分形机理研究
14.
A new evaluation method for rock-crushing efficiency based on crushing work ratio
一种基于破碎比功的岩石破碎效率评价新方法
15.
The rock must be broken by blasting.
硬岩须用爆破的方法破碎。
16.
The rock in the fault zones in mine roadways are generally fractured and difficult to support. As they often connect with the water containing layer, water inrush is apt to occcur.
矿山巷道中的断层带岩石一般比较破碎 ,难以支护 ,而且常常与含水层导通 ,易发生涌水。
17.
This machine used in crushing material in small. The material can be clay, shale, gangue, limestone, cement, iron, ore, etc.
该机适用于粘土、页岩、煤矸石、石灰石、水泥熟料、铁矿石等物料的中细破碎。
18.
Thermo-hydro-mechanical coupling in fractured rock
已破碎岩石中热—水—力学的耦合.