| 1. | The net profit amounts to 20 dollars per ton of ore . |
| 每吨矿砂纯利润达20美元。
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| 2. | Gold ore was discovered in California in 1848. |
| 1848年在加利福尼亚州发现了金矿。
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| 3. | Iron ore occurs there in abundance. |
| 那儿铁矿丰富。
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| 4. | Using coke in iron ore reduction produces copious quantities of airborne particulates. |
| 炼铁过程中使用焦炭，会在空中形成大量的悬浮粒子。
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| 5. | They refined the gold out of the ore . |
| 他们从矿石中提炼出黄金。
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| 6. | The vein of ore pitched at a 45° angle. |
| 矿脉倾斜为４５度。
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| 7. | make an assay of an ore |
| 对一矿石作试验鉴定
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| 8. | abstract metal from ore |
| 从矿砂中提取金属
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| 9. | refine sugar, oil, ore , etc |
| 制糖, 炼油, 提炼矿石
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| 10. | mine the earth for iron ore |
| 开采铁矿石
|