set of points of indeterminary

例句：

1. 1. The mapshows a set of points on the globe.
   地图显示了地球上一组点。
2. 2.The scientist found a set of points that could be used to calculate the distance between two cities.
   科学家发现了一组点，可以用来计算两个城市之间的距离。
3. 3. The engineer used a set of points to plot a graph.
   工程师使用一组点来绘制一个图表。