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| poly (vinyl amine) | |||
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聚乙烯基胺 : 19 phrases in 7 subjects |
| Chemistry | 4 |
| General | 1 |
| Oil / petroleum | 2 |
| Plastics | 1 |
| Polymers | 9 |
| Technology | 1 |
| Water resources | 1 |
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