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radius

美音:[´reıdıəs ]点这儿播放单词美音发声
英音:[´reıdıəs ]点这儿播放单词英音发声
n.半径,范围,辐射光线,有效航程,范围,界限
单词图片
单词:radius的图片解释

难易程度:

radius为短语/超纲词汇

词形变化:

名词复数:radii

词根

radi=ray(光线)

近义词, 同义词

radius


/'reɪdɪəs; `redɪəs/
n (pl -dii / -dIaI; -dI9aI/)
1 (length of a) straight line from the centre of a circle or sphere to any point on its circumference or surface 半径(距离). =>App
5 见附录 5. =>illus at circle 见circle插图.
2 circular area measured by its radius 用半径度量的圆形面积; 半径范围
*Police searched all the woods within a six-mile radius/within a radius of six miles. 警方搜索了在周围六英里以内的树林各处.
3 (anatomy 解) outer shorter bone in the human forearm; corresponding bone in an animal's foreleg or a bird's wing (人与兽的)桡骨; 鸟翼中相当于桡骨的骨. =>illus at skeleton 见skeleton插图. Cf 参看 ulna.

radius


npluralradii [-diaɪ/
1. Police searched all the woods within a six-mile radius.
    警方搜索了在周围六英里以内的树林各处.

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