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| 活泼活性金属 | |||
| 活泼金属; 活性金属 | |||
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active metal : 10 phrases in 8 subjects |
| Automobiles | 2 |
| Chemistry | 1 |
| Electronics | 1 |
| Oil / petroleum | 2 |
| Oil processing plants | 1 |
| Semiconductors | 1 |
| Space | 1 |
| Technology | 1 |
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