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单词
collision density
释义
WordReference Random House Unabridged Dictionary of American English © 2024
colli
′
sion den′sity,
[
Physics.
]
Physics
the rate at which collisions are occurring per unit volume per unit time, usually pertaining to the collisions of neutrons in a nuclear reactor.
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更新时间:2025/7/23 16:20:04