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| 直流电机: 258 phrases in 25 subjects |
| Air defense | 3 |
| Animal husbandry | 1 |
| Automobiles | 29 |
| Aviation | 8 |
| Chemistry | 1 |
| Compressors | 2 |
| Computer numerical control | 2 |
| Construction | 1 |
| Drilling | 7 |
| Electric machinery | 85 |
| Electric motors | 1 |
| Electronics | 17 |
| General | 5 |
| Hydroelectric power stations | 6 |
| Information technology | 4 |
| Metallurgy | 17 |
| Nautical | 3 |
| Oil / petroleum | 7 |
| Project management | 1 |
| Rail transport | 8 |
| Shipbuilding | 3 |
| Space | 3 |
| Technology | 39 |
| Telecommunications | 1 |
| Wind Energy | 4 |
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