带式输送机+凹弧段+曲率半径
belt conveyor + concave segment + curvature radius
线性运动误差曲率半径
curvature radius of linear motion errors
子午圈曲率半径
radius of curvature in meridian
刀子曲率半径
knife edge curvature radius
峰顶曲率半径r
curvature radius of peak crest r
小曲率半径
small curvature radius
small radios of curvature
small radius of curvature
曲率半径法
radius of curvature method
curvature radius method
曲率半径测量
Radius of curvature measurement