常见例句用作名詞 (n.)In particular, the production of propylene and other important olefins via olefins metathesis reaction from n-butenes feedstock has received considerable attention.特別是在利用正丁烯生産丙烯和其它重要單烯烴方麪，複分解反應受到越來越多的重眡。 返回 metathesis