radius

英 [ˈreɪdiəs]

美 [ˈreɪdiəs]

n. 半径(长度); 半径范围; 周围; 桡骨

复数：radii　

Collins.1 / BNC.7090 / COCA.9413

牛津词典

noun

半径（长度）
a straight line between the centre of a circle and any point on its outer edge; the length of this line
半径范围；周围
a round area that covers the distance mentioned from a central point
1. They deliver to within a 5-mile radius of the store.
  他们在距离商场5英里的范围内送货上门。
桡骨
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

N-SING 半径范围；半径距离
Theradiusaround a particular point is the distance from it in any direction.
1. 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。
N-COUNT 半径
Theradiusof a circle is the distance from its centre to its outside edge.
1. 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。

noun

support consisting of a radial member of a wheel joining the hub to the rim
Synonym:spokewheel spoke
the length of a line segment between the center and circumference of a circle or sphere
Synonym:r
the outer and slightly shorter of the two bones of the human forearm
a circular region whose area is indicated by the length of its radius
1. they located it within a radius of 2 miles
a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)

It is found that the flanging height is increasing with the increase of thickness and the corner radius.
发现随着厚度和弯曲圆角半径的增加，翻边高度增大。
Now I have one that has a very small radius compared to this one.
现在还有一个半径很小的，和这个相比。
The influence of temperature, curvature radius of lens and the thickness of oil on ultrasonic field is analyzed.
并分析了温度、透镜曲率半径和油层厚度对探头声场的影响。
Teacher: What's the relationship between the radius and the diameter of the same circle?
师：直径的长度和半径有什么关系？
A circle has diameter, radius and circumference.
圆有直径，半径和圆周。
We give a proof of some upper bounds for the spectral radius of graphs.
该文给出了图的谱半径的一个可达上界的证明。
And, there's a radius that's been painted blue in it.
半径被涂上了蓝色。
And, let's see, we've talked about radius, we've talked about energy.
我看看，我们已经讲了半径了，讲了能量了。
This research has certain reference value for the prediction and of spherical charge on blasting cavity radius in soil.
本文的研究对土中爆炸空腔半径预测有一定的参考价值。
Research shows that multi-point sandwich forming is suitable to form the workpieces with large radius of the curvature.
研究表明，多点“三明治”成形适于制造大曲率半径曲面工件。