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| σ 式模型 | |||
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type model : 34 phrases in 12 subjects |
| Automobiles | 1 |
| Aviation | 4 |
| Bridge construction | 1 |
| Business | 5 |
| Corporate governance | 1 |
| Genetics | 2 |
| Information technology | 1 |
| Mathematics | 4 |
| Mechanic engineering | 1 |
| Mechanics | 1 |
| Oil / petroleum | 2 |
| Technology | 11 |
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