A raw rubber for millable polyether polyurethane elastomer was prepared.
研制了一种新型的聚型聚氨酯生胶。
A raw rubber for millable polyether polyurethane elastomer was prepared.
研制了一种新型的聚型聚氨酯生胶。
The mass spectra of ureide-type noncyclic polyethers with 2(3H)-benzoxazolone as end groups were studies.
研究了以2(3H)-苯并唑酮为端基、具有酰脲结构的环多化合物的质谱。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工,表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。