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稳定 区 : 85 phrases in 27 subjects |
| Agriculture | 2 |
| Air defense | 1 |
| Astronautics | 2 |
| Aviation | 3 |
| Bridge construction | 1 |
| Chemistry | 1 |
| China | 1 |
| Drilling | 1 |
| Earth sciences | 1 |
| Electronics | 2 |
| Engineering geology | 1 |
| Explosives and Explosive Ordnance Disposal | 5 |
| Finances | 2 |
| General | 4 |
| Genetics | 1 |
| Hydroelectric power stations | 1 |
| Information technology | 1 |
| Metallurgy | 3 |
| Nanotechnology | 1 |
| Oil / petroleum | 4 |
| Piezoelectric crystals | 2 |
| Polymers | 1 |
| Refrigeration | 1 |
| Space | 4 |
| Technology | 34 |
| United Nations | 4 |
| Wind Energy | 1 |
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