等压线

例句：

1. 1. The engineer drew a line on the map to represent the isobaric lines.
   工程师在地图上画了一条线，代表等压线。
2. 2. The scientist used the isobaric lines to analyze the temperature distribution in the region.
   科学家利用等压线来分析该地区的温度分布。
3. 3. The meteorologist plotted the isobaric lines to predict weather patterns.
   气象学家绘制了等压线以预测天气模式。