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间隔道 : 26 phrases in 11 subjects |
| Automobiles | 1 |
| Aviation | 3 |
| Computer networks | 1 |
| General | 3 |
| Geophysics | 1 |
| Information technology | 2 |
| Metallurgy | 2 |
| Shipbuilding | 1 |
| Space | 2 |
| Technology | 6 |
| Telecommunications | 4 |
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