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放录机 : 22 phrases in 12 subjects |
| Air defense | 1 |
| Automobiles | 1 |
| Aviation | 2 |
| Business | 2 |
| Communications | 1 |
| Economy | 1 |
| Electronics | 6 |
| Exhibitions | 2 |
| General | 2 |
| Shipbuilding | 2 |
| Space | 1 |
| Technology | 1 |
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