体积比重 meaning in Chinese

bulk density
specific mass gravity

Testing methods for bulk specific gravity , water content , absorption and compressive strength of cellular concrete
多孔混凝土的体积比重含水率吸水率及抗压强度的试验方法
Standard test method for bulk specific gravity and density of compacted bituminous mixtures using paraffin - coated specimens
用涂石蜡样品测定压实的沥青混合料的体积比重和密度的标准试验方法
Standard test method for bulk specific gravity and density of compacted bituminous mixtures using automatic vacuum sealing method
用自动真空密封法测量压实的沥青混合料的毛体积比重和密度的标准试验方法