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| 逆 电 流器: 30 phrases in 12 subjects |
| Automobiles | 1 |
| Aviation | 1 |
| Earth sciences | 1 |
| Electric machinery | 2 |
| Electronics | 4 |
| General | 6 |
| Geophysics | 1 |
| Hydroelectric power stations | 2 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Technology | 8 |
| Wind Energy | 2 |
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