swelled perlite is produced from calcined perlite. it has characteristics of little volumetric weight and large porosity.
膨胀珍珠巖是以珍珠巖为原料煅烧膨胀制成的,具有容重小、空隙率大等特点。
the volumetric weight of a shipment is a calculation that reflects the density of a package.
货物体积重量是一种反映了包裹密度的计算结果。
taking zhaoxiayu section, mangshan, zhengzhou as an example, this paper has studied the volumetric weight of loess palaeosol sequences and its relation with susceptibility as well as its grain size .
本文以郑州邙山赵下峪剖面为例,研究了黄土-古土壤序列的容重及其与磁化率、粒度的关系。
the shipment will be charged on volumetric weight or actual weight, whichever is the greater.