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| 交零点 | |||
| crossing zero: 49 phrases in 12 subjects |
| Air defense | 1 |
| Artificial intelligence | 3 |
| Aviation | 1 |
| Earth sciences | 1 |
| Electronics | 7 |
| General | 3 |
| Geophysics | 1 |
| Information technology | 3 |
| Oil / petroleum | 6 |
| Space | 2 |
| Technology | 17 |
| Telecommunications | 4 |
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