Warning: file_put_contents(): Only 0 of 6109 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/201990.com/index.php on line 55 metathetically例句_metathetically英汉例句_metathetically双解例句_耀久九英英词典
In particular, the production of propylene and other important olefins via olefins metathesis reaction from n-butenes feedstock has received considerable attention. 特别是在利用正丁烯生产丙烯和其它重要单烯烃方面，复分解反应受到越来越多的重视。