boiling point index

例句：

1. 1.The boiling point of water is 100 degrees Celsius.
   水的沸点是100摄氏度。
2. 2.The boiling point index is a measure of how quickly a substance will change from liquid to gas at a specific temperature.
   沸点指数是一个衡量物质在特定温度下从液态变为气态的速度的指标。
3. 3. The boiling point index is used in industrial processes to determine the optimal temperature for processing certain materials.
   沸点指数用于工业过程中，以确定处理某些材料的最佳温度。