名词
中文翻译：曲率
同义词：
['straightness', 'straightline', 'curve', 'curvature line']
例句：
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1. Theshape of the planet is determined by its curvature.
行星的形状由其曲率决定。
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2.The curved path led to a hidden valley.
曲折的路径通向一个隐蔽的山谷。
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3. The geometry of the curved surface was studied in detail.
对曲面的几何形状进行了详细研究。