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| 活动 性: 177 phrases in 25 subjects |
| Astronautics | 1 |
| Biology | 1 |
| Business | 3 |
| Chemistry | 2 |
| Construction | 1 |
| Education | 24 |
| Electronics | 3 |
| Environment | 1 |
| General | 54 |
| Geology | 10 |
| Law | 1 |
| Medical | 25 |
| Military | 6 |
| Nautical | 1 |
| Oil / petroleum | 2 |
| Oil processing plants | 3 |
| Psychology | 1 |
| Seismology | 1 |
| Slang | 1 |
| Socialism | 2 |
| Sociology | 1 |
| Sports | 1 |
| Technology | 29 |
| United Nations | 1 |
| Water resources | 2 |
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