heat emissivity coefficient

例句：

1. 1.The solar panel's efficiency is directly related to its heat emissivity coefficient.
   太阳能电池板的效率与其热发射系数直接相关。
2. 2. The new model car has a higher heat emissivity coefficient than the previous one.
   新款汽车的热发射系数比旧款高。
3. 3.The researcher found that the heat emissivity coefficient of the material was significantly affected by the temperature.
   研究人员发现，这种材料的热发射系数受温度影响显著。