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主 元 : 48 phrases in 12 subjects |
| Chemistry | 1 |
| Computers | 4 |
| Electronics | 1 |
| General | 25 |
| Law | 1 |
| Linguistics | 1 |
| Mathematics | 6 |
| Metallurgy | 1 |
| Military | 1 |
| Patents | 1 |
| Sociology | 1 |
| Technology | 5 |
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