G排=前G-后G=700g-600g=100g V金=V排=F浮/p(水密度)g=0.1*10N/kg /(103kg/m3*10N/kg)=0.1*10-3m3 G金=820g-600g=220g=0.22kg p(合金密度)=m/v=0.22kg/0.1*10-3m3=2200kg/m3
G排=前G-后G=700g-600g=100g V金=V排=F浮/p(水密度)g=0.1*10N/kg /(103kg/m3*10N/kg)=0.1*10-3m3 G金=820g-600g=220g=0.22kg p(合金密度)=m/v=0.22kg/0.1*10-3m3=2200kg/m3