밀도=(0.85g/cm3)(1kg/1,000g)(100cm/1m)3 = 850kg/m3 / 비중량(무게/부피) = ρg = 0.85gf/cm3 = (0.85g)(980cm/sec2)/(1cm3)= (833)(1g×1cm/sec2) = 833dyn
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