名词
中文翻译：角半径
同义词：
['angularity', 'radius of curvature']
例句：
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1.The angular radius is the distance between two points on a circle.
角半径是圆上两点之间的距离。
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2. The angular radius can be used to measure the curvature of a curve.
角半径可以用来测量曲线的曲率。
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3. The angular radius is an important factor in determining the stability of a structure.
角半径是确定结构稳定性的一个重要因素。