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| 邮 箱: 46 phrases in 21 subjects |
| Agriculture | 1 |
| Architecture | 1 |
| Bridge construction | 1 |
| Business | 3 |
| Communications | 1 |
| Computer networks | 6 |
| Data processing | 3 |
| Economy | 1 |
| Electronics | 3 |
| Environment | 1 |
| Exhibitions | 1 |
| Finances | 2 |
| General | 3 |
| Information technology | 4 |
| International trade | 3 |
| Oil / petroleum | 1 |
| Project management | 1 |
| Space | 1 |
| Technology | 4 |
| Telecommunications | 4 |
| Textile industry | 1 |
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