Radiusi桡骨radiusn.半径范围；半径；桡骨；辐射区radius grinding attachment半径磨削附件radius of affine curvature仿射曲率半径radius of influence circle影响圆半径radius of influence domain影响域半径radius of gyration of area断面二次半径radius of horizontal curve平曲线半径radius of second curvature第二曲率半径radius of curvature method曲率半径法radius of flange mouth arc法兰口圆弧半径radius of transmitter coil发射线圈半径