[ 'reidiai ]
pl. 半径
[医] 半径, 辐射线(解)
n the length of a line segment between the center and circumference of a circle or sphere
n a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
n a circular region whose area is indicated by the length of its radius
n the outer and slightly shorter of the two bones of the human forearm
n support consisting of a radial member of a wheel joining the hub to the rim
- 原型: radius
英汉双解字典由 ECDICT 提供