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检流器 : 40 phrases in 12 subjects |
| Air defense | 2 |
| Aviation | 1 |
| Chemistry | 1 |
| Drilling | 1 |
| Earth sciences | 1 |
| Electronics | 3 |
| General | 2 |
| Metallurgy | 2 |
| Oil / petroleum | 2 |
| Project management | 1 |
| Technology | 23 |
| Wind Energy | 1 |
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