作者单位:Liu Songli(Resource and Environmental Engineering School,Panzhihua University,Panzhihua 617000,Sichuan,China)刘松利(攀枝花学院资源与环境工程学院,四川攀枝花617000)Feng Hucheng(Resource and Environmental Engineering School,Panzhihua University,Panzhihua 617000,Sichuan,China;Mechanical College,University of West China,Chengdu 610039,Sichuan)冯虎成(攀枝花学院资源与环境工程学院,四川攀枝花617000;西华大学机械学院,四川成都610039)