isothermal coordinates

例句：

1. 1. The temperature of the liquid remains constant at a specific point on the thermometer.
   液体在温度计上某一点的温度保持不变。
2. 2. The experiment was conducted under isothermal conditions to ensure accuracy.
   实验在恒温条件下进行以确保准确性。
3. 3. The heat transfer process is often described using the concept of isothermal flow.
   热传递过程常使用等温流动的概念来描述。