vùng phân tán 
dispersion zone [ vùng ] : (1) region, area; (2) to leave in a hurry
[ phân ] : to distribute, divide
[ tán ] : (1) to flatter, court, flirt; (2) to help, aid, assist; (3) to crush, grind, pulverize; (4) loose, scattered; (5) parasol, umbrella, shade
Most Common Compounds Set 1:
Most Common Compounds Set 2 :