constant temperature line

例句：

1. 1.The constant temperature line is a crucial factor in determining the optimal growth conditions for crops.
   恒定温度线是确定农作物最佳生长条件的关键因素。
2. 2. The constant temperature line divides the region into two distinct zones: the warm and dry desert, and the cooler and weter coastal area.
   恒定温度线将该地区划分为两个截然不同的区域：温暖的干燥沙漠和凉爽的湿润沿海地区。
3. 3. The constant temperature line plays a significant role in maintaining the ecological balance of the ecosystem.
   恒定温度线在维护生态系统生态平衡方面起着重要作用。