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If aluminum is a soft metal, why is it so difficult to cut?
| 题名： | If aluminum is a soft metal, why is it so difficult to cut? |
| 正文语种： | 英文 |
| 作者： | Jennie P., Seal Beach, California |
| 关键词： | NULL |
| 摘要： | If aluminum is a soft metal, why is it so difficult to cut? |
| 出版年： | 2019 |
| 期刊名称： | Popular Mechanics |
| 期： | 3 |
| 页码： | 26 |
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