| 释义 |
radius ☞radiusn. [′reɪdɪǝs] (radii)
双解释义 1. C 半径（距离） (length of a) straight line from the centre of a circle or sphere to any point on its circumference or surface2. C 用半径度量的圆形面积；半径范围 circular area measured by its radius词汇搭配 ～+介词 ～ of action 活动半径；有效破坏半径 the ～ of curvature 曲率半径句型例句 We are measuring the radius of the circle. 我们正在测量圆的半径。 He has visited every shop within a radius of two miles. 周围两英里以内的店铺他都去过。 |