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检平器 : 39 phrases in 13 subjects |
| Air defense | 2 |
| Automated equipment | 1 |
| Aviation | 2 |
| Chemistry | 1 |
| Communications | 1 |
| Electric machinery | 1 |
| Electronics | 6 |
| Geophysics | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 6 |
| Shipbuilding | 1 |
| Space | 4 |
| Technology | 12 |
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