1 N-VAR 密度;稠密;密集 Density is the extent to which something is filled or covered with people or things. 密度;稠密;密集
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...a law which restricts the density of housing. [+ of]
限制房屋密集程度的法规
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The region has a very high population density.
该地区的人口密度很高。
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...areas with high densities of immigrant populations.
移民人口稠密的地区
SYN tightness, closeness, thickness, compactness
2 N-VAR [oft with poss] （物质或物体的）密度 In science, the density of a substance or object is the relation of its mass or weight to its volume. （物质或物体的）密度 [technical]
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Jupiter's moon Io, whose density is 3.5 grams per cubic centimetre, is all rock.
密度为每立方厘米 3.5 克的木星卫星木卫一上遍布岩石。
SYN mass, body, bulk, consistency
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