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收"和"发" : 38 phrases in 14 subjects |
| Accounting | 1 |
| Automobiles | 1 |
| Aviation | 7 |
| Earth sciences | 1 |
| Economy | 1 |
| Finances | 2 |
| General | 3 |
| Geophysics | 2 |
| Project management | 4 |
| Refrigeration | 1 |
| Space | 5 |
| Technology | 5 |
| Telecommunications | 4 |
| United Nations | 1 |
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