Qilu olefin plant overcapacity four thousand tons of ethylene .

齐鲁烯烃厂产能过剩4000万吨乙烯。

Produced liquid can not flush for olefin blockage .

生产液体没有冲洗能力，石蜡堵塞。

The activator that reduces benzine olefin content develops a success .

降低汽油烯烃含量的催化剂研制成功。

Olefin polymerization catalysts and polymerization reaction .

烯烃聚合催化剂和聚合反应。

Study on the chain initiation for olefin polymerization with neutral salicylaldiminato nickel ( ii ) catalyst by density functional theory .

中性水杨醛亚胺镍催化烯烃聚合反应链引发机理的密度泛函研究。