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控制开 关 : 227 phrases in 25 subjects |
| Agriculture | 2 |
| Air defense | 2 |
| Artificial intelligence | 1 |
| Automobiles | 32 |
| Aviation | 18 |
| Business | 2 |
| Construction | 1 |
| Drilling | 1 |
| Electric machinery | 7 |
| Electronics | 48 |
| General | 1 |
| Geophysics | 2 |
| Hydroelectric power stations | 13 |
| Information technology | 5 |
| Metallurgy | 5 |
| Nautical | 1 |
| Oil / petroleum | 2 |
| Oil processing plants | 2 |
| Rail transport | 3 |
| Refrigeration | 2 |
| Shipbuilding | 3 |
| Space | 8 |
| Technology | 55 |
| Telecommunications | 8 |
| Wind Energy | 3 |
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