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| 共聚用单体 | |||
| 共聚单体 | |||
| 共聚用单体 | |||
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comonomer ratio : 9 phrases in 5 subjects |
| Oil / petroleum | 3 |
| Plastics | 1 |
| Polymers | 3 |
| Space | 1 |
| Technology | 1 |
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