That is, all factors favorite in both forming spherical nuclei and growing in all directions in the iron melt can be regarded as factors promoting graphite spheroidization.

• 也就是说，凡是有利于铁水中形成球形核心，并有利于这种核心在各个方向均匀生长的因素，都可看作是促进石墨球化的因素，反之亦然。