The knowledge of flow regime is very important for quantifying the pressure drop,the stability and safety of two-phase flow systems.Based on image multi-feature
The dried root of Rosa multiflora Thunb.contains β-sitosterol,2α,19α-dihydroxy-ursolicacid 1,and 2ct,19α-dihydroxy-ursolic acid-(28-1)-β-D-gluconolactone,