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| polyisocyanate | |||
| polymeric isocyanate | |||
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多异氰酸酯 : 12 phrases in 6 subjects |
| Chemistry | 2 |
| Oil / petroleum | 3 |
| Plastics | 1 |
| Polymers | 3 |
| Space | 1 |
| Technology | 2 |
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