three-membered
英
美
[网络] 三元
双语例句
- Carbonyl group on position C18 and epoxy three-membered ring on position C7~ C8 are the connecting parts;
18位上的羰基和7～8位上的三元氧环是其活性的可能结合部位； - Electronic structure and bonding of three-membered boron-nitrogen rings
三元硼氮环的电子结构与成键 - During the ethylene insertion, the carbonyl insertion, the oxidative addition of H 2, and the aldehyde reductive elimination, the three-membered structures are formed.
乙烯插入、羰基插入、H2的氧化加成和丙醛还原消除过程中三元环的形成是协同进行的。 - The Study of Three-membered Cycloaddition to [ 60] Fullerene and Functions of Their Derivatives
[60]富勒烯三元环化反应及其衍生物功能研究 - The result shows that the transition state of the rearrangement reaction has a three-membered ring structure.
结果表明，该重排反应经过一个三元环过渡态。 - The result shows that the Transition States of the H-transfer and Cl-transfer of the title compound are both three-membered ring structure, and both products are linear molecules.
结果表明，无论是氢原子H迁移还是氯原子Cl迁移都经过1个三元环过渡态，生成直线型产物。 - The chemistry of three-membered rings has come a long way in the past 100 years, since the first cyclopropane derivatives were synthesized by William Henry Perkin in Munich in the laboratory of the eminent chemist Adolf von Baeyer.
自WilliamHenryPerkin在慕尼黑著名的有机化学家AdolfvonBaeyer的实验室首次合成三元环衍生物以来，三元环化学的发展已经有100多年的历史了。