thermal wall

例句：

1. 1. The thermal conductivity of the material is high.
   这种材料的导热性能很高。
2. 2.The thermal energy in the sun is released into space.
   太阳中的热能被释放到太空中。
3. 3. The thermal expansion coefficient of metals is a key factor in their properties.
   金属的热膨胀系数是其性质的关键因素。