| 单词 | 圆半径 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔curvature〕The reciprocal of the radius of a circle.曲率：一个圆半径的倒数美国传统〔radius〕A line segment that joins the center of a circle with any point on its circumference.圆半径：将圆心与圆周上任一连接起来的线段美国传统〔secant〕The ratio of the length of this line to the length of the radius of the circle.正割值：这条线的长度与圆半径之比美国传统 |
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