The compound dry cleaning principle is briefly described. A beneficiation test on South African coal was conducted using a model compound dry cleaning apparatus
This paper introduces a method of building a prototype system of geologic profile auto-drawing. A .NET development platform and integrated environment was used
The paper discussed theory and methodologies of soil erosion assessment and established an implementation process according to USLE factors combining with thema
In order to study the water-inrush mechanism of concealed collapse pillars from the mechanical view,a mechanical model for water-inrush of collapse pillars has