boiling point rise

例句：

1. 1.The temperature has been rising steadily since the beginning of the year.
   自年初以来，温度一直在稳步上升。
2. 2. As the water boils, it will reach its boiling point and then start to rise.
   当水煮沸时，它会达到其沸点并开始上升。
3. 3.The scientists observed that the boiling point of the substance had increased slightly due to the addition of a small amount of salt.
   科学家们观察到，由于添加了少量盐，该物质的沸点略有增加。