Then by narrow gaugerailroad into the Assam Valley to Chabua and fly over the Hump to Kunming.
然后坐小火车到阿萨姆邦的贾布尔基地，然后飞越驼峰到昆明。
2
Its function is fixes the rail on the railroad tie, maintains the gauge and the impediment rail is opposite in the railroad tie vertically and horizontally to the migration.