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| 脉冲放大器 | |||
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pulse amplifier : 40 phrases in 12 subjects |
| Air defense | 4 |
| Automobiles | 1 |
| Aviation | 2 |
| Electronics | 9 |
| Geophysics | 2 |
| Information technology | 1 |
| Metallurgy | 1 |
| Project management | 1 |
| Radio | 3 |
| Shipbuilding | 1 |
| Space | 2 |
| Technology | 13 |
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