Apedia

Radius Distance ˈreɪdiəs Point Centre Radii ˈreɪdiaɪ Noun

word radius
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Collins
radius ★☆☆☆☆
/re͟ɪdiaɪ/
1
[N-SING 单数名词]半径范围;半径距离 The radius around a particular point is the distance from it in any direction.
  [with supp]
  • Nigel has searched for work in a ten-mile radius around his home.

    奈杰尔一直在他家周围10英里的范围内找工作。

2
[N-COUNT 可数名词]半径 The radius of a circle is the distance from its centre to its outside edge.
  • He indicated a semicircle with a radius of about thirty miles.

    他标示出了一个半径大约为30英里的半圆形。


Oxford ra·dius / ˈreɪdiəs ; NAmE ˈreɪdiəs / noun _circles_comp.jpg _circles1.jpg ( plural radii / ˈreɪdiaɪ ; NAmE ˈreɪdiaɪ / ) 1 a straight line between the centre of a circle and any point on its outer edge; the length of this line 半径(长度) compare
diameter
 (1 )
2 a round area that covers the distance mentioned from a central point 半径范围;周围 They deliver to within a 5-mile radius of the store. 他们对距离店铺 5 英里的范围内送货上门。 3 ( anatomy ) the shorter bone of the two bones in the lower part of the arm between the elbow and the wrist, on the same side as the thumb 桡骨 see also
ulna
radius radii
ra·dius / ˈreɪdiəs ; NAmE ˈreɪdiəs / radii / ˈreɪdiaɪ ; NAmE ˈreɪdiaɪ /
LDC
radiusra‧di‧us /ˈreɪdiəs/ ●○○ noun (plural radii /-diaɪ/) [countable]
Word Origin
Examples
word sets
Collocations
1the distance from the centre to the edge of a circle, or a line drawn from the centre to the edgediameter2an area that covers a particular distance in all directions from a central point:  The shock of the explosion was felt over a radius of forty miles.within a 10-mile/200-metre etc radius There are more than a dozen golf courses within a 15-mile radius of St Andrews.3technical the outer bone of the lower part of your arm
WDF

radius

[ˈreɪdiəs]

CET4CET6TEM4考研GREIELTS
n9620
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NOUN5578
155835

Spoken:

48344997
半径(81%),桡骨(15%),半径范围(3%),辐射区(1%)
n.半径,半径范围;[解剖] 桡骨;辐射光线;有效航程
n.(Radius)人名;(意、印尼)拉迪乌斯;(英)雷迪厄斯;(法)拉迪于斯

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