Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/8d513f72ff3a89f40cac80158fdedd65.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 diolefin是什么意思，diolefin的翻译，diolefin音标、读音、用法和例句_甲百匯小鸡词典
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。