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| 聚氨基甲酸酯树脂; 聚氨酯树脂 | |||
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| 聚氨酯树脂 | |||
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polyurethane resin : 12 phrases in 6 subjects |
| Chemistry | 2 |
| Oil / petroleum | 2 |
| Plastics | 1 |
| Polymers | 4 |
| Space | 1 |
| Technology | 2 |
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