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实验化学 : 51 phrases in 14 subjects |
| Aviation | 2 |
| Chemistry | 2 |
| Earth sciences | 13 |
| Electronics | 1 |
| General | 16 |
| Geology | 2 |
| Geophysics | 1 |
| Metallurgy | 1 |
| Nautical | 1 |
| Plastics | 2 |
| Reproductive biology | 1 |
| Space | 1 |
| Technology | 7 |
| United States | 1 |
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