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级号 : 102 phrases in 22 subjects |
| Advertising | 1 |
| Agriculture | 1 |
| Air defense | 1 |
| American usage, not spelling | 1 |
| Animal husbandry | 1 |
| Automobiles | 1 |
| Aviation | 9 |
| Business | 3 |
| Chess | 1 |
| Construction | 1 |
| Electronics | 14 |
| General | 3 |
| Geophysics | 3 |
| Information technology | 1 |
| Mathematics | 3 |
| Multimedia | 3 |
| Oil / petroleum | 4 |
| Space | 5 |
| Sports | 1 |
| Technology | 36 |
| Telecommunications | 7 |
| Textile industry | 2 |
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