| 1. | 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。 |
| 2. | How are metals concentrated .
金属是怎样富集的？ |
| 3. | Beneficiation removes clay and silica to considerable extent .
富集操作除去粘土和硅石达到相当高的程度。 |
| 4. | A beneficiation process is used to increase the purity to 95% or more .
可采用富集方法将纯度提高到95或更高。 |
| 5. | The concept of regional uranium enrichment has been discussed by davidson, saum and link .
戴维森、索姆和林克等论述了区域性铀富集的条件。 |
| 6. | Such deposits represent very great concentration of materials once widely dispersed .
这类矿床表现为一度广泛分散的物质非常高度地富集起来。 |
| 7. | We get the maximum enrichment in it by taking just the first bit of vapor that comes off .
取刚刚离开的第一点蒸气，可得到它的最大富集浓度。 |
| 8. | Uranium is frequently enriched by sorption or chemical combination in shales, lignites and phosphorites .
铀经常为页岩，泥炭和磷块岩所吸附或化学结合态而富集。 |
| 9. | In many porphyry copper deposits, additional enrichment of the metal has been caused by surficial weathering .
在许多斑岩铜矿矿床中，地表风化使得金属铜进一步富集。 |
| 10. | Most of the smaller hornblendite bodies contain about 5-10 percent magnetite, with only local sporadic enrichment .
在小的角闪岩体中，磁铁矿可占510，仅有局部的散染状富集。 |
