名词中文翻译1
中文翻译：Unknown
同义词：
['downward radiation', 'downward emission', 'downward flux']
例句：
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1. The scientist observed the downward radiation from the sun.
科学家观察到了太阳的向下辐射。
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2. The downward radiation from the sun is responsible for the greenhouse effect.
太阳的向下辐射是温室效应的原因。
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3.The downward radiation from the sun can be used to power spacecraft.
太阳的向下辐射可以用来为太空船提供动力。