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| number of category | |||
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种类数 : 17 phrases in 11 subjects |
| Agriculture | 1 |
| Business | 2 |
| Earth sciences | 1 |
| Ecology | 2 |
| Economy | 3 |
| Electronics | 1 |
| Information technology | 1 |
| Mathematics | 1 |
| Securities | 1 |
| Technology | 3 |
| Textile industry | 1 |
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