density /ˈdɛnsɪtɪ/ CET4 TEM4

• 1. 

  N-VAR Density is the extent to which something is filled or covered with people or things. 密度

  例：

  The region has a very high population density.

  这一地区人口密度很高。

• 2. 

  N-VAR In science, the density of a substance or object is the relation of its mass or weight to its volume. 密度 [技术]

  例：

  Jupiter's moon Io, whose density is 3.5 grams per cubic centimetre, is all rock.

  木星的卫星木卫一全是岩石，其密度为每立方厘米3.5克。