1.
Discussion About Blasting Footage and Cutting Patterns of Circular Tunnel in Supper Hard Rock
圆型隧洞超硬岩爆破进尺与掏槽方式探讨
2.
Rapid Construction Technology for Auxiliary Shaft in Super-thick Hard Rock in Babao Mine
八宝煤矿副井超厚硬岩快速施工技术
3.
The design of blasting control of the hard rock in large cross-section undersea tunnel
超大断面海底隧道硬岩控制爆破设计
4.
ultrabasic rock
超碱岩, 超基性岩
5.
Advance Bottom Heading Technology Applied in Hard Rock Mountain Tunnels with Large Cross-section
下导洞超前施工技术在大断面山岭硬岩隧道中的应用
6.
KENT SUPER LIGHTS
新健牌超特醇（硬）
7.
hard rock coring tool
坚硬岩石井壁取心器
8.
Solidified lava filling the vent of an extinct volcano.
岩颈填充死火山的硬化的火山岩
9.
Fisher discriminant analysis model of rock burst prediction and its application in deep hard rock engineering
深部硬岩岩爆预测的FDA模型及其应用
10.
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
11.
low pressure synthesis of superhard coating
超硬涂层的低压合成
12.
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
13.
Microstructure and Superhardness Effect of the Hard Nano-multilayer Films;
硬质纳米多层膜的微结构与超硬效应
14.
Study on Cutting Temperature under Ultrasonic Hard Turning 45 Hardened Steel
超声硬切削45淬硬钢的切削温度研究
15.
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。
16.
Research on Tunneling Technology in Hard and Mix Ground by Shield Machine;
盾构在硬岩及软硬不均地层施工技术研究
17.
A light - colored tuff used in hydraulic cement.
粗面凝灰岩一种用来生产硬水泥的淡色凝灰岩
18.
Any of various hard, dark - colored rocks, especially basalt and chert.
暗色岩一种坚硬、暗色的岩石，尤指玄武石及燧石