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计算机化的 Archie 系统 : 13 phrases in 10 subjects |
| Corporate governance | 1 |
| Earth sciences | 2 |
| Economy | 1 |
| Electronics | 1 |
| Geophysics | 1 |
| Information technology | 1 |
| Mechanics | 1 |
| Project management | 1 |
| Space | 3 |
| United Nations | 1 |
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