名词
中文翻译：半径
同义词：
['radius-luminance relationship', 'radius-luminous intensity relationship']
例句：
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1.The luminosity of the star is measured in lumens.
恒星的亮度以勒克斯计量。
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2. Radius and luminosity are closely related to each other.
半径和亮度之间存在密切关系。
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3.The study of this relationship has led to significant advancements in astronomy.
研究这种关系的进展在天文学领域产生了重大突破。