1.
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
2.
Research on the Minimum Rock Cover Thickness of Underwater Tunnel in Alternating Layers of Hard and Soft Rocks;
软硬岩交互地层水下隧道最小岩石覆盖层厚度研究
3.
The maria are circular depressions covered with dark, loosely packed material-not solid rock.
“月海”是圆形洼地，覆盖着暗色的松散物质，而不是坚硬的岩石。
4.
Of the three great classes of rocks, igneous rock constitutes most of the earth's crust though their great volume are extensively covered by sedimentary rocks.
在3大类岩石中．火成岩组成了地壳岩石的大部分，虽然火成岩大都被沉积岩所覆盖。
5.
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
6.
ophiolite-radiolarite nappe
蛇绿岩-放射虫岩推覆体
7.
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
8.
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
9.
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
10.
Application of the Technology of Dynamic Monitoring by Network Parallel Electrical Method in Overburden Failure
网络并行电法在覆岩破坏动态监测中的应用
11.
Influence and prevention on the fault of overburden rock to water-preserved mining in shallow seam
浅埋煤层覆岩中断层对保水采煤的影响及防治
12.
In situ detection technology in the overburden failure to monitor the application
原位探测技术在覆岩破坏监测中的应用
13.
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
14.
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
15.
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
16.
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
17.
having a hardened crust as a covering.
有硬壳作为覆盖物的。
18.
a slimy substance covered the rocks.
被粘稠物质覆盖的岩石。