The problem of the route KMJ is sovled! Thank you for all your kind help and your fixed world-files!! Every Chinese train fan thanks you!! Besides you can go to my personal website
http://www.trainsimchina.com/ver_eng/home_en.htm to check out all Chinese railways and trains for MSTS! And if anyone knows about Chinese, you'd better go to the Chinese version of it. Because Chinese version is more new, more specific and got more cool stuffs!!