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无线电接收 : 74 phrases in 14 subjects |
| Air defense | 6 |
| Astronautics | 1 |
| Automobiles | 4 |
| Aviation | 2 |
| Communications | 2 |
| Earth sciences | 2 |
| Electronics | 8 |
| General | 5 |
| Information technology | 1 |
| Oil / petroleum | 3 |
| Shipbuilding | 4 |
| Space | 7 |
| Technology | 27 |
| Telecommunications | 2 |
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