成熟分裂

With the numerical simulated data of the storm, the structure and evolution of the helicity, superhelicity and their dynamical influences on the development of the storm are investigated.

原有对流单体在原地维持的结构，表现较强的稳定性，而的新单体在移动过程中，逐渐位相发，并且又新的单体。

The secondary oocyte now divides again into two new cells of unequal size: a relatively large ootid (mature egg cell) and a minute second polar body.

此时，次级卵母细胞又两个大小不对等的新细胞：一个相对很大的卵子（卵细胞）和一个微小的次级极体。