apparent relative density meaning in English

视相对密度

Determination of apparent relative density of coal
煤的视相对密度测定方法
Coke - determination of apparent relative density and total porosity
焦炭假相对密度及总气孔率测定方法
Determination of apparent relative density and porosity of industrial briquette
工业型煤视相对密度及孔隙率测定方法
Coke - determination of true relative density , apparent relative density and porosity
焦炭.相对真密度相对表观密度和孔隙度测定
Ceramic tiles - determination of water absorption , apparent porosity , apparent relative density and bulk density
瓷砖.吸水率外表孔隙率表观相对密度和体密度的测量

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