1.
Research and Application of Diamond-impregnated PDC Bit or Drilling in Medium Hard Rock Formation
中硬岩层钻进孕镶金刚石复合片钻头的研究与应用
2.
Application Research on Medium-length Hole Blasting in Hard Rock Drift Excavation
中深孔爆破在硬岩施工中的应用研究
3.
Middle-Deep Bore Blasting Experimental Study on Hard Rock Tunnel Heading
硬岩巷道掘进的中深孔爆破试验研究
4.
Application of Hydraulic Pressure System of Umbrella Drill to the Construction of Shaft in Hard Rock
液压伞钻在立井硬岩段施工中的应用
5.
Numerical modeling of seismic source function for underground explosion in hard rock
硬岩中地下爆炸震源函数的数值模拟
6.
Research of the Vibration Velocity Attenuation Law of the Particle in Wall Rock Bursting Where Hard Rock Tunneling Advances Rectangularly
硬岩爆破掘进对直角拐弯后巷道围岩中质点振速衰减规律的研究
7.
Technical Study and Application on Middle Deep Hole Smooth Blasting for Hard Rock Tunnel;
硬岩巷道中深孔光面爆破技术研究和应用
8.
Application of Combined Slotting in Driving Hard Rock Roadway
混合掏槽技术在坚硬岩石巷道掘进中的应用
9.
The Application of Presplit Controlled Blasting Technique in the Hard Rock Blast
预裂控制爆破技术在坚硬岩石爆破中的应用
10.
hard rock coring tool
坚硬岩石井壁取心器
11.
a rigid layer of the lithosphere that is believed to drift slowly.
地球岩石圈中非常坚硬的一层，被认为在缓慢漂移。
12.
Colloidal particles are formed in considerable amounts in hard-rock drilling and blasting operation.
在硬岩石钻孔和爆破作业中，大量地生成胶体粒子。
13.
He retreated his fingers and thrust his already rock hard erection into that tight heat of Allen.
他拔出手指，将自己已经岩石一样坚硬的分身插入亚连的紧窒中。
14.
The Relationship between Water Conducted Zone Height in the Moderate Hardness Cover Rocks and the Dimensions of the Strip Longwall;
中硬覆岩导水裂缝带发育高度与条带开采尺寸的关系研究
15.
Microanatomic Study of Petrous Part of Temporal Bone and Internal Auditory Canal by Middle Fossa Approach;
颅中窝硬膜外入路颞骨岩部及内听道的显微解剖研究
16.
Application Research of Shield Tunnel Boring Machine on Soft and Hard Rock Engineering in Osaka Tunnel
双护盾全断面掘进机在大坂隧洞软硬岩工程中的应用研究
17.
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
18.
Solidified lava filling the vent of an extinct volcano.
岩颈填充死火山的硬化的火山岩