| 词汇 | radius |
| 释义 | radius/ˈreɪdiəs ||; ˈredɪəs/noun [c] (plural radii) /-diaɪ ||; -dɪˌaɪ/ 1. the distance from the centre of a circle to the outside edge 半径 ☞look at diameter and circumference. 参看diameter及circumference。 ☞picture at circle 见circle插图 2. a circular area that is measured from a point in its centre 半径范围: ◇the wreckage of the plane was scattered over a radius of several miles. 飞机的残骸散落在方圆数英里的地方。 3. (medical医学) the shorter bone of the two bones in the lower part of your arm between your wrist and your elbow 桡骨 ☞look at ulna. 参看ulna。 ☞picture at body 见body插图 ra·di·us /`redɪəs; ˈreɪdiəs/n [c] plural radii /-dɪˏaɪ; -diaɪ/ 1. the distance from the centre of a circle to the edge ［圆的］半径 2. within a 10 mile/100 metre etc radius within a distance of 10 miles etc from a place in any direction 方圆 10 英里/ 100 米等范围内 |
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