sidereal orbital periods
Act of enervating; debilitation. / State of being enervated; debility.
plural of sidereal orbital period
(nautical) The mast above the foretop.
Alternative form of immunosensitization
天文学者たちは、新たに発見された系外惑星の恒星に対する公転周期を測定して、モデルを改良した。
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