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1. | rough diamonds. |
| 未经加工的钻石 |
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2. | General Processing Concepts |
| 加工的基本概念 |
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3. | an intractable metal |
| 难加工的金属 |
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4. | frozen, processed foods |
| 冷冻的、 加工的食品. |
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5. | intractable materials. |
| 不易加工的材料 |
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6. | difficult to machine material |
| 难加工的材料 |
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7. | rough wrought |
| 经初步加工的 |
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8. | processed food products |
| 经加工的食品 |
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9. | History of Food Processing |
| 食品加工的历史 |
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10. | a breakfast food prepared from grain. |
| 谷类加工的早餐食品。 |
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