                   ᠠᠬᠢᠭᠣᠯᠵᠣ     15%  

             

        5   21   

                

              

  

            

            

       2014     4.2M  

28M        3G     3M  

   22M           

              

   90%          7.2GB

       1.2  

            

                

           2018       

       449        

               

    2015   3.2      2018  

5           15%  