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DescriptionCrossSectionFig1.svg
English: In a gas of particles of individual diameter $2r$, the cross section $\sigma$ for collisions is related to the particle number density $n$, and mean free path between collisions $\lambda$.
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Qwerty123uiop, RASch 8-17, Reinhard Schumacher
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Ras67
=={{int:filedesc}}== {{Information |description={{en|1=In a gas of particles of individual diameter $2r$, the cross section $\sigma$ for collisions is related to the particle number density $n$, and mean free path between collisions $\lambda$.}} |date=...
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