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| classical theory | |||
| classic theory | |||
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经典理论 : 19 phrases in 9 subjects |
| Business | 3 |
| Economy | 1 |
| Electronics | 1 |
| Information technology | 1 |
| Psychology | 1 |
| Space | 1 |
| Technology | 9 |
| Telecommunications | 1 |
| Wind Energy | 1 |
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