名词中文翻译
中文翻译：日界线
同义词：
['solar zenith', 'solar noon', 'solar declination']
例句：
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1. Theheliopause marks the point where the sun's rays are blocked by the Earth's atmosphere.
日界线是太阳光线被地球大气层阻挡的地方。
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2.During the summer solstice, the heliopause is at its highest point in the Northern Hemisphere.
在夏至期间，日界线位于北半球的最高点。
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3. The heliopause can be used to predict when the polar regions will experience a complete lack of sunlight.
日界线可以用来预测极地地区将完全失去阳光的时间。