basic interval

例句：

1. 1.The basic interval between the two events is five minutes.
   这两个事件之间的基本间隔是五分钟。
2. 2.The basic interval between two points on a graph is the distance between them.
   图上两点之间的基本间隔是它们之间的距离。
3. 3.The basic interval for this calculation is one hour.
   这个计算的基本间隔是一小时。