| 11. | a company with a corner in tin ore , wheat, etc |
| 垄断锡矿石, 小麦等市场的一家公司
|
| 12. | crude oil, sugar, ore , etc |
| 原油, 粗糖, 原矿
|
| 13. | washing ore |
| 淘洗矿石
|
| 14. | strike a rich vein of ore |
| 发现丰富的矿脉
|
| 15. | an ore bunch |
| 矿巢
|
| 16. | ore containing iron |
| 含铁的矿石
|
| 17. | poverty in iron ore |
| 铁矿贫乏
|
| 18. | ore with a small proportion of gold |
| 含金量很少的矿砂
|
| 19. | multistage ore concentration |
| 多段选矿法
|
| 20. | the determination of the amount of iron in ore |
| 矿石中含铁量的测定
|