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| 脲醛塑料 | |||
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| 脲醛塑料; 尿素塑料 | |||
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urea plastics : 13 phrases in 7 subjects |
| Chemistry | 4 |
| Electronics | 1 |
| General | 1 |
| Oil / petroleum | 1 |
| Plastics | 3 |
| Shipbuilding | 1 |
| Technology | 2 |
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