graph of reservoir operation

例句：

1. 1. The engineer drew a graph to show the relationship between temperature and humidity.
   工程师画了一条图表来显示温度和湿度之间的关系。
2. 2. The scientist used a graph to illustrate the data collected from the experiment.
   科学家用一条图线来说明从实验中收集到的数据。
3. 3. The physicist created a graph to demonstrate the force acting on an object.
   物理学家创建了一条图线来展示作用于物体的力。