thermal transmission

例句：

1. 1.The thermal transmission of the material is crucial for its performance.
   这种材料的热传导对性能至关重要。
2. 2.The engineers were able to optimize the thermal transmission of the heat exchanger.
   工程师们能够优化热交换器的热传导。
3. 3.Heat conduction and thermal transmission are two different phenomena.
   导热和热传导是两种不同的现象。