1.
Simulation of Rockburst in Hard and Brittle Surrounding Rocks of Circular Underground Cavern
圆形地下洞室坚硬脆性围岩岩爆的模拟
2.
Study on Model and Stability of Surrounding Rock of Large Underground Caverns under High Geo-Stress Condition;
高地应力下硬岩弹脆塑性劣化本构模型与大型地下洞室群围岩稳定性分析
3.
Study on Continuum Damage of the Tunnel Brittle-Quasibrittle Surrounding Rocks;
隧道脆性—准脆性围岩连续损伤特征研究
4.
Characteristics of Surrounding Rock and Support Design Procedures in Working Faces of Strong Roof and High Ground Pressure in Deep Mines;
深井高地压坚硬顶板采场围岩特性与支护设计方法
5.
Experimental study of effect of chemical corrosion on strength and deformation of hard brittle limestone
化学侵蚀下硬脆性灰岩变形和强度特性的试验研究
6.
A large section or block of the earth's crust that is more rigid than the surrounding rock and has been moved or displaced as a unit.
断层地块一大块比周围岩石更坚硬的、曾发生过整块位移的地壳
7.
Study on Water Based Fluids Suitable for the Hard Brittle Shale Formations
适用于硬脆性泥页岩地层的水基钻井液技术研究
8.
Study on Electroplated Diamond Bit for Extra-hard, Compact and Weak-abrasiveness Formation;
坚硬致密弱研磨性岩层电镀金刚石钻头研究
9.
something having the quality of granite (unyielding firmness).
具有象花岗岩一样属性的事物（具有坚硬、不弯曲、坚定的属性）。
10.
hard rock coring tool
坚硬岩石井壁取心器
11.
2. In flat dip layer, the seam thickness control the stability of the wall rock, the thick-bedded hard rock is stable than the thin-bedded hard rock.
② 岩层厚度在缓倾斜时对围岩稳定起控制作用，厚层硬岩整体稳定性好于薄层状硬岩。
12.
Main influ-encing factors on rock abrasiveness are the sturdiness of rock mass and contentof hard minerals,and the coefficient of rock abrasiveness is a function of thespecific energy consumption in drilling and the content of hard minerals.
影响岩石磨蚀性的主要因素是岩石的整体坚固程度和硬矿物含量。
13.
Drilling and Blasting Technology of Hard Rock in New Ventilating Shaft in Zhangxin Coal Mine
张新矿新风井坚硬岩石凿岩爆破技术
14.
Research on Coefficent of Brittle Stress Drop of Brittle-plastic Rocks
脆塑性岩石应力脆性跌落系数的试验研究
15.
Of, relating to, or resembling rock, especially in hardness; stony.
坚硬的，石质的岩石的，与岩石有关的，或岩石状的，特别指硬度方面；坚硬的
16.
Vitreous rocks are hard and shiny.
玻璃状的岩石坚硬而晶莹闪光。
17.
This machine can bore through solid rocks.
这台机器能够钻透坚硬的岩石。
18.
they found a bed of standstone.
这一地层的岩石非常坚硬。