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单词
solar cycle
释义
WordReference Random House Unabridged Dictionary of American English © 2024
so
′
lar cy
′
cle,
[
Astron.
]
Astronomy
the variation of sunspots, prominences, flares, and other solar activity through an 11-year cycle. Also called
so
′
lar activ
′
ity cy′cle.
Cf.
sunspot cycle.
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更新时间:2025/12/7 1:40:04