isothermal diagram

例句：

1. 1. The experiment was conducted at an isothermal temperature of 25°C.
   实验在25°C的恒温条件下进行。
2. 2. The thermostat controls the temperature in this room to maintain an isothermal environment.
   恒温器控制着这个房间的温度，以保持恒温环境。
3. 3. The isothermal process involves heating and cooling the material at constant temperatures.
   等温过程涉及在恒定温度下加热和冷却材料。