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电子录像 : 20 phrases in 10 subjects |
| Earth sciences | 1 |
| Electronics | 6 |
| General | 1 |
| Information technology | 1 |
| Latin | 1 |
| Metallurgy | 1 |
| Shipbuilding | 1 |
| Space | 2 |
| Technology | 5 |
| Telecommunications | 1 |
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