The area has been mined for slate for centuries.
这个地区开采板岩有数百年了。
Coal is mined from underground.
煤是从地下开采来的。
The ruby and jadite had not yet been mined.
红宝石和硬玉那时还没有被开采。
他们在城墙下挖坑道。
The whole area has been mined out.
整个地区的矿藏都被采光了。
They mined the whole area for gold.
他们在整个地区采掘黄金。
They mined gold from that mountain.
他们从那山里开采黄金。
Gold is mined from deep underground.
金子是从很深的地下挖出来的。
All the easy gold has been mined already.
可见所有易开采的黄金都已被挖掘一空。
The rare pink diamond was mined in South Africa.
这颗罕见的粉钻是在南非开采得来的。
Some of the world's supply of salt is mined as rock salt.
世界上有些盐的供应靠采掘岩盐。
Gold is scarce and can only be mined at great trouble.
黄金稀有珍贵，只有付出巨大艰辛才能开采出来。
Did you really think your son mined those rocks himself?
你真的以为你的儿子是自己去挖矿的吗？
Some of the world's supply of salt is mined as rock salt.
世界上供应的盐有些是从开采岩盐得到的。
They also control the eastern area where diamonds are mined.
他们也管理着东部开采金刚石的地区。
The data could be mined to improve public transport and security.
挖掘出的这些数据，可用来改善公共交通及安全。
Only about 80,000 tons have been mined in the history of the world.
全世界整个历史上已挖掘的金矿只有8万吨左右。
After the whole area has been mined out, all the miners have left.
整个地区的矿全都挖光后，所有的矿工就都离开了这里。
Decision rules can be mined from given data using rough set theory.
利用粗糙集理论可以从已知数据中挖掘决策规则。
It is greatly convenient for the safe management of the mined-out area.
该系统的应用可极大地方便采空区的安全管理。
It is difficult for mined tunnel with shallow cover to cross water-rich sand stratum.
穿越富水砂层一直是浅埋暗挖隧道的难点。
It is difficult for mined tunnel with shallow cover to cross water-rich sand stratum.
穿越富水砂层一直是浅埋暗挖隧道的难点。
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