surface heat flow

例句：

1. 1. The surfaceheat flow is a crucial factor in theenergy balance of the Earth's atmosphere.
   表面热流是地球大气能量平衡的关键因素。
2. 2. Heat transfer through the surface of amaterial is known as surface heat flow.
   通过材料表面的热传递称为表面热流。
3. 3. Thestudy of surface heat flow has important applicationsin engineering and environmental science.
   表面热流的研究在工程和环境科学中有重要应用。