| 1. | The mine is no longer being worked .
这座煤矿现在已不开采了。 |
| 2. | Soon he succumbed to silver mining fever .
没过多久他就被开采银矿的狂热所感染。 |
| 3. | Limestone had been carved away .
石灰石已被开采运走。 |
| 4. | New mexico leads the nation in uranium mining .
在铀的开采方面，新墨西哥居于全国首位。 |
| 5. | Valuable deposits of oil have been found by drilling .
通过钻探发现很有开采价值的油层。 |
| 6. | Mining operations by open-cut methods ceased in 1962 .
露天开采的矿山作业已于1962年停止。 |
| 7. | Economically minable limestone does not occur so frequently .
经济上值得开采的石灰石并不这样多。 |
| 8. | They were probably the first types of deposit ever worked by man .
它们也许是人类最早开采的矿床类型。 |
| 9. | Ip surveys aimed at finding the extent of a vein being mined .
IP测量的目的在于寻找正在开采的矿脉的延伸。 |
| 10. | In australia no exploitable uraniferous conglomerate has been discovered .
在澳大利亚，尚未发现可开采的含铀砾岩。 |
