堆密度是指粉体质量除以该粉体所占容器的体积V求得的密度，亦称堆密度，即ρb=W/V。填充粉体时，经一定规律振动或轻敲后测得的密度称振实密度（tapdensity），英语专业术语简写：ρbt。
成堆密度 bulk density
催化剂堆密度 catalyst bulk density
松密度、堆密度 Bulk density
表观堆密度 apparent bulk density
垃圾堆密度 apparent refuse density ; refuse bulk density ; refuse pile density
堆密度仪 Tapped Density Tester
堆积密度 bulk density ; packing density ; Accumulation density ; apparent density
堆密度的测定 Determination of bulk density
粮堆密度 [粮食] bulk density of grain
大粒径、低堆密度催化剂易膨胀；
The catalyst with big size and low bulk density is prone to expand.
催化剂还具有强度高、堆密度小、自再生能力强等特点。
The catalyst also had high side pressure, low bulk density and good capacity of self - generation.
湿膨胀系数用于预报谷物堆密度和研究谷粒应力裂纹产生原因等研究。
The hydroscopic expansion coefficient of grains is an important physical parameter for prediction of bulk densities and study of internal stresses of grain kernel during adsorption and desorption.
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