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共聚 聚醚 : 38 phrases in 9 subjects |
| Automobiles | 1 |
| Chemistry | 6 |
| General | 2 |
| Oil / petroleum | 2 |
| Plastics | 6 |
| Polymers | 15 |
| Space | 2 |
| Technology | 3 |
| Water resources | 1 |
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