1.
hard rock coring tool
坚硬岩石井壁取心器
2.
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
3.
continuous sidewall core cutter
连续式井壁岩心切割器
4.
gas generated press sidewall coring tool
产气压入式井壁取心器
5.
electrically driven rotary sidewall sampler
电动钻进式井壁取心器
6.
side wall coring gun
射入式取心器井壁取心枪
7.
This machine can bore through solid rocks.
这台机器能够钻透坚硬的岩石。
8.
rotary sidewall coring tool
旋转或旋进式井壁取心器
9.
Development and Application of Wire-line Coring Bit for Hard and Compact Rock Formation
坚硬致密岩层用绳索取心钻头的研制与应用
10.
A machine that bores through hard surfaces, used especially for tunneling through rock.
凿岩机一种钻孔于坚硬表面的机器，尤用作凿穿岩石的隧道
11.
A Correction of Saturation Data Obtained From Sealed Core Analysis
密闭取心井岩石饱和度测量数据校正方法
12.
Research on Bionic Coupling Diamond Coring Bits in Drilling Hard Rock
硬岩钻进用仿生耦合金刚石取心钻头研究
13.
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
14.
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
15.
Wellbore Stability Analysis Considering Rock Size Effects
考虑岩石尺寸效应的井壁稳定性分析
16.
Vitreous rocks are hard and shiny.
玻璃状的岩石坚硬而晶莹闪光。
17.
they found a bed of standstone.
这一地层的岩石非常坚硬。
18.
Kentish rag
肯特郡产坚硬砂质石灰岩