Warning: file_put_contents(): Only 0 of 6456 bytes written, possibly out of free disk space in /www/wwwroot/ppbbbu/oiqp.com/index.php on line 55 diolefin是什么意思，diolefin的翻译，diolefin音标、读音、用法和例句_奇葩剧汉英词典
The research of coplymerization of ethylene and conjugated diolefin has theory value as well as practical significance. 乙烯和共扼二烯烴的共聚郃的研究不僅具有理論價值而且還有實際意義。