ring substituted的意思|示意
美 / /
英 / /
ring substituted相关例句
Anticorrosion performance of copolymers and homopolymers from ring - substituted aniline and aniline are summarized systematically.
系统总结了环取代苯胺共聚物和均聚物在金属防腐领域的研究进展.
互联网