[count noun]the relative importances of the external and internal causes.

内因外因的相对重要性。

It also emphasizes the importances to follow the economic law, set up the reform theory and research reform basis in deepening the reform of communication industry.

强调在交通行业的深化改革中，遵循经济规律、建立改革理论、研究改革依据的重要性。