isobath

例句：

1. 1. The temperature of the ocean is generally constant at around 25°C.
   海洋的温度通常在大约25摄氏度左右。
2. 2. The isocean is a region where the temperature remains constant throughout the year.
   同义词“isocean”指的是一个全年温度恒定的区域。
3. 3. The isocean is often used as a reference point for measuring the Earth's temperature.
   同义词“isocean”常被用作测量地球温度的参考点。