名词
中文翻译：折线
同义词：
['straight line', 'curve', 'line of sight']
例句：
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1.The lines of curvature on the surface of the earth are what make it look like a globe.
地球表面的折线造就了它看起来像一个球体。
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2.The artist drew lines of curvature to create the illusion of depth in the painting.
艺术家通过绘制折线来在画作中创造出深度的错觉。
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3. The scientist used a microscope to observe the lines of curvature on the surface of the sample.
科学家使用显微镜观察样本表面折线的弯曲情况。