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波控制器 : 40 phrases in 10 subjects |
| Air defense | 3 |
| Aviation | 7 |
| Communications | 1 |
| Computers | 1 |
| Earth sciences | 2 |
| Electronics | 15 |
| Geophysics | 1 |
| Shipbuilding | 1 |
| Space | 7 |
| Technology | 2 |
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