名词
中文翻译：弧线距离
同义词：
['arc length', 'arc radius']
例句：
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1.The arcing distance between the two stars is about 20 light years.
两颗星星之间的弧线距离大约是20光年。
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2. The arcing distance of the planets in our solar system is approximately 93 million kilometers.
我们太阳系中的行星的弧线距离大约是93百万公里。
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3.The arcing distance of the moon's orbit around the earth is about 384,400 kilometers.
月亮围绕地球的轨道弧线距离大约是384,400公里。