第三条航道建设实行统一领导，分级管理制度。

Article 3 The system of unified leadership and level-by-level administration shall be implemented for channel construction.

youdao

第三条航道建设实行统一领导，分级管理制度。

Article 3 The system of unified leadership and level-by-level administration shall be implemented for channel construction.

youdao