01 Introduction of air compressor Air compressor, referred to as air compressor, is a machine that uses ambient air as raw material to convert the mechanical energy of the motor into gas pressure energy to meet the pressure required by the production...

The Ninth People's Hospital Affiliated to Shanghai Jiaotong University School of Medicine is a comprehensive teaching hospital with a complete range of internal medicine, surgery, gynecology, and pediatrics featuring stomatology, reconstructive surge...