求翻译：在实验处理中绘制的分析图表都是二维图表，因此我们的数据源也是二维的。为了减小程序的复杂性，我们采用二维数组作为数据源。数组中的两维数据分别对应图表的X、Y轴坐标。如果要绘制多条图线，就要有相应个数的数组。是什么意思？

Analysis chart drawn in the experimental treatment are two-dimensional charts, so our data source is also two-dimensional. In order to reduce the complexity of the program, we have adopted the two-dimensional array as a data source. The two-dimensional data array corresponding to the chart x, y-axis