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单词
pericenter
释义
WordReference Random House Unabridged Dictionary of American English © 2024
per•i•cen•ter
(per
′
ə sen′tər),
USA pronunciation
n.
[
Astron.
]
Astronomy
the point at which a heavenly body orbiting around a primary other than the earth or sun is closest to the primary. Cf.
apocenter.
peri
- +
center
1900–05
per′i•cen
′
tral, per′i•cen
′
tric
,
adj.
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更新时间:2025/12/9 0:37:46