等温线的

例句：

1. 1. The temperature increases with altitude on this mountain range.
   这个山脉随着海拔的升高，气温逐渐升高。
2. 2. The isobaric lines are drawn to show the distribution of air pressure.
   等压线被绘制出来以显示空气压力的分布情况。
3. 3. The isopleths represent the climatic conditions at different elevations.
   等值线代表不同海拔处的气候条件。