ST_Curve是一个专业的曲线绘制控件，只要是xy坐标系的曲线，都可绘制，纵坐标只能显示为值，横坐标可以显示为值或者时间。-ST_Curve is a professional drawing curve controls, as long as xy coordinates of the curve, can be drawn, the vertical axis only shows the value, the abscissa can be shown as the value or

几何精度建模与理论方法，主要用于多轴数控机床、机器人的精度建模方面。-Geometric accuracy of modeling and theoretical methods, mainly for multi-axis CNC machine tools, robotics, precision modeling.