converting normal tracks to electrified ones_Dunhuang to Geermu

convert normal rail tracks to electrified tracks are possible. An present example is the under construction railway from Dunhuang (敦煌), Gansu Province to Geermu (格尔木), Qinghai Province, of which the 160km part from Dunhuang to Liugou (柳沟) is to be updated from the existing normal tracks to electrified tracks.