semidiameter radii radius r 【数】radius
We are measuring the radius of the circle.
我们正在测量圆的半径。
—— 给力词典精选Roundness depends on the sharpness or radius of curvature of the edges.
浑圆度取决于边角的锐度或曲率半径。
—— 辞典例句The diameter of Mars is slightly over half that of the earth.
火星的直径比地球的半径稍大些。
—— 辞典例句The given radius being 4 ft., find the circumference.
已知半径为四英尺, 求周长。
—— 辞典例句The particle radius unit, the micron, is especially common and useful.
粒子半径的单位是微米, 微米这个单位尤其普通和有用。
—— 辞典例句