国家自然科学基金重点项目61231017;国家重大研究计划91438106;陕西青年科技新星2014KJXX-48;陕西省自然基金2015JQ6206 Foundation Items:The National Natural Science Foundation of China61231017;National Basic Research Program of China91438106;Shaanxi Youth Science and Technology New Star2014KJXX-48;Natural Fund of Shaanxi Province2015JQ6206