tapped bulk density meaning in English

叩击松密度

Advanced technical ceramics . methods of test for ceramic powders . part 8 : determination of tapped bulk density
高级陶瓷.陶瓷粉末试验方法.第8部分:振实堆积密度测定
Methods of sampling and test for carbonaceous materials used in aluminium manufacture - electrode coke - determination of tapped bulk density of green and calcined coke
制铝工业用炭素材料取样与试验方法.第2部分:电极用焦炭.第13节:未焙烧焦炭和焙烧焦炭散装密度测定