A raw rubber for millable polyether polyurethane elastomer was prepared.
研制一的聚醚聚氨酯生胶。
The mass spectra of ureide-type noncyclic polyethers with 2(3H)-benzoxazolone as end groups were studies.
研究以2(3H)-苯并唑酮为端基、具有酰的非环多醚化合物的质谱。
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You wouldn't think I'd be the type of person to find psychic relief in the intricacies of the urethane polyether polyol trade, but I did.
你不认为那种在错综复杂的聚酯聚醚多元醇贸易中理解脱的人,但做了。
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