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符号识别 : 41 phrases in 14 subjects |
| Agriculture | 1 |
| Automobiles | 1 |
| Aviation | 4 |
| Business | 5 |
| Computers | 1 |
| General | 5 |
| Information technology | 1 |
| Law | 1 |
| Oil / petroleum | 2 |
| Securities | 1 |
| Space | 4 |
| Technology | 12 |
| Telecommunications | 2 |
| Textile industry | 1 |
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