thermal conditions

例句：

1. 1. The thermal conductivity of the metal is very high.
   这种金属的热导率非常高。
2. 2.The temperature difference between the two sides of the wall is 50 degrees Celsius.
   墙两侧的温度差为50摄氏度。
3. 3. Thermal energy is a form of energy that can be converted into other forms of energy.
   热能是一种可以转化为其他形式的能量。