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单词
areal velocity
释义
WordReference Random House Unabridged Dictionary of American English © 2024
ar
′
eal veloc
′
ity,
[
Astron.
]
Astronomy
a measure of the velocity of one celestial body in orbit about another, equal to the area swept out per unit time by the vector joining the two bodies.
1960–65
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更新时间:2025/7/23 18:19:31