olefin的例句（olefin在句子中的用法）

• Olefin gas closely approximates air. 烯空气跟空气十分近似.
• Recent advances in ring closing metathesis ( RCM ) reaction, including olefin and enyne metathesis reaction are reviewed. 综述了近几年来关环复分解 ( RCM ) 反应的研究新进展, 包括了烯烃、烯-炔的RCM反应.
• The alkylation of isoparaffin with olefin is an important process of petroleum processing. 异构烷烃与低分子烯烃的烷基化反应是石油加工的重要过程之一.
• The progresses in five - membered heterocyclic metallocene analogic complexes and their application in olefin polymerization are reviewed. 综述了五元杂环类茂金属配合物的研究进展及其在烯烃聚合中的应用.