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| structural index | |||
| structure index; texture index | |||
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结构指数 : 18 phrases in 11 subjects |
| Aviation | 2 |
| Business | 1 |
| Chemistry | 1 |
| Earth sciences | 2 |
| Economy | 1 |
| Geology | 1 |
| Oil / petroleum | 3 |
| Plastics | 1 |
| Securities | 1 |
| Space | 2 |
| Technology | 3 |
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