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主群 : 70 phrases in 16 subjects |
| Agriculture | 1 |
| Animal husbandry | 2 |
| Aviation | 3 |
| China | 4 |
| Cycle sport | 1 |
| Cycling other than sport | 2 |
| Desert science | 4 |
| Electronics | 21 |
| General | 6 |
| Heavy equipment vehicles | 1 |
| Information technology | 2 |
| Marketing | 1 |
| Mathematics | 1 |
| Space | 2 |
| Technology | 8 |
| Telecommunications | 11 |
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