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单词 density
释义

density

/ˈdɛnsɪti /
noun (plural densities) [mass noun]
1The degree of compactness of a substance: a reduction in bone density...
  • Because it is a weight bearing activity, skating can build bone density to a certain degree.
  • Encouraging the consumption of this single food, milk, may have lasting implications for nutrient density, bone health and body weight.
  • Syncopation in varying degrees of rhythmic density plays an important role in ‘Kohntarkosz.’

Synonyms

solidity, solidness, denseness, thickness, substance, bulk, weight, mass;
compactness, tightness, hardness
1.1 (also packing density) Computing A measure of the amount of information on a storage medium: [as modifier, in combination]: a low-density floppy disk...
  • With its incredibly high storage density, the DVD might just be the solution to two vexing problems.
  • While in its early stages, the technology shows potential for high speed, high density storage of data, while retaining data even when power is turned off.
  • One way to increase storage capacity is to increase the areal density of the medium.
1.2 Physics The quantity of mass per unit volume of a substance.We are further informed that scientific theories fail at a singularity, which is an event involving infinite mass, density, pressure and temperature....
  • The formula is easily derived by making assumptions about the mass density of the earth.
  • That is based on its average density, calculated by dividing total mass by volume.
1.3The opacity of a photographic image.While the imagery was similar, the format and the images' density were not....
  • Hot and cool colors come together explosively within individual dishes, offering various effects of density and opacity.
  • Phone based cameras don't yet have sufficient image density to compete with true digital cameras, but they will in a few short years.
2The quantity of people or things in a given area or space: areas of low population density [count noun]: a density of 10,000 per square mile...
  • The low population density in rural areas makes the provision of specialized mental health services in those areas impractical.
  • It is not known why the understory of the Hermit forest had such uncharacteristically low total stem density and total basal area.
  • The Government should develop a specific number of roads every year according to the traffic density of the area concerned.

Origin

Early 17th century: from French densité or Latin densitas, from densus 'dense'.

Rhymes

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更新时间:2024/11/13 19:18:16