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.
The hard rock in which diamonds are found is called blue ground, because it is somewhat blue.
他们把发现有钻石的坚硬岩石叫作蓝色脉岩，因为它的颜色有点蓝。
4.
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
5.
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
6.
Petrology of jadeite-bearing serpentinized peridotite and its country rocks from Northwestern Myanmar (Burma).
缅甸含硬玉的蛇纹石化橄榄岩及其围岩的岩石学研究
7.
Vitreous rocks are hard and shiny.
玻璃状的岩石坚硬而晶莹闪光。
8.
This machine can bore through solid rocks.
这台机器能够钻透坚硬的岩石。
9.
"Towards the outside, the rock is cool and hard. "
靠近地表是冷却硬化的岩石。
10.
they found a bed of standstone.
这一地层的岩石非常坚硬。
11.
There are different kinds of rock. Some are harder and heavier than others.
岩石类型繁多，有些比较硬，比较重。
12.
`Rough as a saw edge, and hard as whinstone!
“像锯齿一样地粗，像岩石一样地硬！
13.
Kentish rag
肯特郡产坚硬砂质石灰岩
14.
INTRINSIC TIME CONSTITUTIVE THEORY OF ROCK HARDEN AND SOFTEN CHARACTERISTICS
岩石硬化及软化特性的内时本构理论
15.
Soft rocks may be gradually worn away and harder rocks are rubbed so that they become smooth and shiny.
松软的岩石渐渐地磨掉，硬的岩石被摩擦，以至于它们变得平滑光亮。
16.
A very hard, dense, even - textured, silica - bearing sedimentary rock used in whetstones.
均密石英岩非常坚硬，致密，结构均匀，含硅的沉积岩，用作磨石
17.
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。
18.
If there had not been a hard layer of rock beneath the soil,
如果不是因为土壤下面有一层坚硬的岩石，