radius

中文释义

1. n. 半径, 范围, 辐射光线
2. [电] 半径

英文释义

1. n. the length of a line segment between the center and circumference of a circle or sphere
2. n. a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
3. n. a circular region whose area is indicated by the length of its radius
4. n. the outer and slightly shorter of the two bones of the human forearm

词形变化

复数

radii

相关单词