Supported by the National Natural Science Foundation of China(No.20873101);the Scientific Research Foundation of the Higher Education Institutions of Gansu Province(No.2016B-091);the General Program of the Key Laboratory of Hexi Corridor Resources Utilization of Gansu Universities(No.XZ1603);2015 National Training Program of Innovation and Entrepreneurship for Undergraduates(No.201510740004);2016 Provincial Training Program of Innovation and Entrepreneurship for Undergraduates(No.201610740004);the Sixth Scientific Innovation for College Students of Hexi University(No.001,No.117)~~