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| 需求模式 | |||
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| 需求模式 | |||
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demand model : 14 phrases in 8 subjects |
| Business | 5 |
| Electronics | 1 |
| Finances | 1 |
| Marketing | 1 |
| Mathematics | 1 |
| Oil / petroleum | 1 |
| Technology | 3 |
| Water resources | 1 |
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