矿山企业管理信息系统
Mine enterprise management information system
矿山企业生产模拟
dynamic simulation in mining enterprise production
乡镇矿山企业
township mining enterprises
有色矿山企业
nonf errous mining enter-prises
企业VPN(企业虚拟专用网)
enterprise’s virtual private network
安徽琅琊山矿业总公司
anhui langyashan general mining company
厂矿企业
Industrial enterprises
Factories and mining corperations
Industrial and Mining Enterprises
工矿企业
mines and factories
industrial and mining enteprises
Industry enterprise
industry and mining enterprise
Mining enterprise
industrial and mining enterprise
Industrial and mining establishments
Factories、mines and other enterprises
Industrial and Mining Enterprises
梅山矿业公司采矿场
Mine Yard of Meishan Mining Industry Company