The initial period stage is primarily by the centralized way, the higher phase is primarily by proliferating way.

初期阶段以集中方式为主，高级阶段以扩散方式为主。

youdao

The initial period stage is primarily by the centralized way, the higher phase is primarily by proliferating way.

初期阶段以集中方式为主，高级阶段以扩散方式为主。

youdao