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拨 号 机 : 27 phrases in 11 subjects |
| Advertising | 2 |
| Agriculture | 4 |
| Communications | 1 |
| Electronic commerce | 1 |
| Electronics | 4 |
| General | 1 |
| Information technology | 3 |
| Shipbuilding | 1 |
| Statistics | 1 |
| Technology | 5 |
| Telecommunications | 4 |
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