The mass spectra of ureide-type noncyclic polyethers with 2(3H)-benzoxazolone as end groups were studies.
研究了
2（3H）-苯并唑酮为端基、具有酰脲结构的非环多醚
的质谱。
The mass spectra of ureide-type noncyclic polyethers with 2(3H)-benzoxazolone as end groups were studies.
研究了2（3H）-苯并唑酮为端基、具有酰脲结构的非环多醚的质谱。
A raw rubber for millable polyether polyurethane elastomer was prepared.
研制了一种新
的聚醚聚氨酯生胶。
：
上例句、词性分类均由互联网资源自动生成，部分未经过人工审核，其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。
