英语语法分析

Therefore, they are of polygenetic compound.

因此，它们是多因复成的。

The polygenetic compound uranium deposits are very important in the Neogene basins.

新第三纪盆地中多因复成铀矿床很重要。

Polycyclic sedimentation formed an oil generating system with multiple polygenetic hydrocarbon.

多旋回沉积产生多元复合成烃的生油体系。