| 1. | The belt is a westward-opening crescent . 成矿带呈西端张开的新月状。 |
| 2. | The phosphate also acts as a binder . 磷矿还起胶结剂的作用。 |
| 3. | Roll deposition are important in uravar belt . 有尤拉凡矿带内的卷型矿床甚为重要。 |
| 4. | The doctors at the mine make their rounds of visits every day . 矿上医生每天巡诊。 |
| 5. | The mine had yielded a total of about 3714 tons of coal . 这座矿已生产了3714吨煤。 |
| 6. | Flotation is used for florida and kola rock . 浮选操作法用于佛罗里达磷矿和科拉磷矿。 |
| 7. | The mineralization is localized by faulting and shearing . 矿化受断层和剪切带的控制。 |
| 8. | They may form concentrated pockets in gravels . 它们可能在砾石堆积物中形成富集的矿囊。 |
| 9. | Mill availability is high . 磨矿机的开工率是高的。 |
| 10. | The uranium reconnaissance was undertaken in the u.k . 在英国境内曾开展过铀矿普查工作。 |