英语语法分析

The procedure of dehydrogenation and cracking of dipentene was discussed.

最后讨论了双戊烯脱氢和裂解反应过程。

The cyclic dipentene in C 5 raw material was taken off by heat polymerization.

以煤系软沥青为原料，采用多管井式坩埚炉进行沥青热聚合反应。

Conclusion that developing downstream products of cheap dipentene can make good economic and social profits is drawn.

得出开发廉价的双戊烯的下游产品可以获得良好的经济、社会效益的结论。