VA Characteristic curve

例句：

1. 1.The VA characteristic curve shows the relationship between temperature and humidity.
   VA特性曲线显示了温度和湿度之间的关系。
2. 2. The engineer used a computer program to calculate the VA characteristic curve.
   工程师使用计算机程序来计算VA特性曲线。
3. 3.The data on the VA characteristic curve was analyzed to determine the optimal operating conditions.
   对VA特性曲线的数据进行分析，以确定最优操作条件。