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光学 激 光器 : 55 phrases in 12 subjects |
| Air defense | 2 |
| Aviation | 5 |
| Earth sciences | 1 |
| Electronics | 15 |
| Geophysics | 1 |
| Information technology | 2 |
| Oil processing plants | 1 |
| Project management | 1 |
| Shipbuilding | 2 |
| Space | 13 |
| Technology | 11 |
| United States | 1 |
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