radius

英 [ˈreɪdiəs]

美 [ˈreɪdiəs]

n.  半径(长度); 半径范围; 周围; 桡骨

复数：radii　

CET4CET6考研TOEFLIELTSGRETEM4TEM8电力

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

柯林斯词典

• 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。

英英释义

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)

双语例句

• We can compute the circular area with radius.
  我们能用半径计算出圆的面积。
• Here is atomic radius versus atomic number.
  这是原子半径和原子序数。
• And what I calculated was the terminal velocity as a function of radius of these ball bearings.
  我计算的是终端速度，作为这些钢珠的，半径函数。
• No, but it will give me a search radius.
  不，但是这会给我个调查的范围。
• 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。
• Join the surfaces and use fillet edge command with proper radius size.
  加入表面和使用圆角边指挥适当的半径大小。
• The necessary exposure time for corona at different solar radius is estimated as well.
  文章还估计了拍摄不同太阳半径上日冕所需的曝光时间。
• The cutting edge's radius of curvature can be estimated.
  断面曲率半径是可被预估的。
• The argument to sphere represents the radius of the sphere.
  sphere的参数表示了球体的半径。
• Through the simulation to choose the optimum truncation radius and the optimal time step.
  经过模仿选择最优的截断半径和最优的时间步长。