[U] quality of being dense(1b, 2) 浓度; 密度: the density of a forest, the fog, etc 森林的密度﹑ 雾的浓度. 
[C, U] (physics 物) relation of mass to volume 密度（质量与体积的关系）.
/ 5densEtI; `dZnsEtI/ n [U] quality of being dense(1b, 2) 浓度; 密度: the density of a forest, the fog, etc 森林的密度﹑ 雾的浓度. [C, U] (physics 物) relation of mass to volume 密度（质量与体积的关系）.