形容词
中文翻译：切线的
同义词：
['parallel', 'perpendicular', 'oblique']
例句：
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1.The line of the road is tangential to the building.
这条路线与建筑物成斜线。
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2.The angle between two lines is called their tangential angle.
两线之间的夹角称为它们的切线角。
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3.The projector's beam is parallel to the screen, but its direction is tangential.
投影仪的光束平行于屏幕，但方向是斜的。