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优选词，正式主题词

Number Density (en)  

定义

  • In physics, astronomy, and chemistry, number density (symbol: n) is a kind of quantity used to describe the degree of concentration of countable objects (atoms, molecules, dust particles, galaxies, etc.) in the three-dimensional physical space.

狭义概念

相关概念

  • http://dbpedia.org/resource/Number_density

注释，说明

  • In physics, astronomy, and chemistry, number density (symbol: n) is a kind of quantity used to describe the degree of concentration of countable objects (atoms, molecules, dust particles, galaxies, etc.) in the three-dimensional physical space.

其它语言

URI

https://vocab.sentier.dev/units/quantity-kind/NumberDensity

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