For each row of chart data, a radial is shown on which the data is plotted. All data values are shown with the same scale, so all data values should have about the same magnitude.
对于图表数据的每一行，一条径向线显示在数据绘制的位置。所有数据值用相同比例显示，所以所有数据值应该具有相同的量级。