Last Updated
：2025/11/21
mean free path
Noun
Japanese Meaning
平均自由行程: 物理学用語で、同じ種類の現象が連続して起こる間に、粒子（たとえば、ガスや液体中の分子、結晶中の電子やフォノン、あるいは減速材中の中性子）が移動する平均距離を指す。
（ plural ）
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(physics) the average distance travelled between two similar events; especially by molecules in a gas or liquid, electrons or phonons in a crystal or neutrons in a moderator
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mean free path
In a gas, the mean free path is the average distance a molecule travels between collisions.
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In a gas, the mean free path is the average distance a molecule travels between collisions.
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