包装机械工程
packaging mechanical engineering
包装机械工业
packaging machinery industry
北京机械工业学院
Beijing College of Mechanical Industry
长沙探矿机械厂
changsha prospecting machine manufacturer
长治清华机械厂
changzhi qinghua machinery factory
成套木材加工机械
complete wood working machinery
大连水产学院机械工程学院
mechanical engineering institute
dalian fisheries university
大型施工机械
heavy construction machine
稻米加工机械
rice processing machinery
地质矿产部石油钻探机械厂
petroleum machinery factory
Mnistry of Geology and Mineral Resources
电机机械式扫描
electromechanical scannig
scanning
electromechanical
电子机械工程
electro-mechanical engineering