Density
01
密度, 体積密度
(physics) the degree to which a substance is compacted, measured by dividing its mass by its volume
例
The density of water is approximately 1 gram per cubic centimeter ( g / cm³ ).
水の密度は約1グラム毎立方センチメートル（g/cm³）です。
02
密度, 集中度
the spatial property of having elements packed closely together, typically expressed as the number of units per given area or volume
例
Urban planners analyze population density to determine where to build new transit lines.
都市計画者は、新しい交通路線をどこに建設するかを決定するために人口密度を分析します。
03
the degree to which light is blocked or absorbed by a photographic filter or film, usually measured in stops or optical density units
例
The photographer adjusted the filter density to reduce glare.
