fixed tube sheet exchanger

例句：

1. 1.The fixed tube sheet exchanger is an essential component in the cooling system.
   固定管板式换热器是冷却系统中不可或缺的部件。
2. 2.The engineers designed a new model of fixed tube sheet exchanger to improve efficiency.
   工程师们设计了一种新型的固定管板式换热器，以提高效率。
3. 3. The fixed tube sheet exchanger was installed in the factory's cooling system to reduce energy consumption.
   固定管板式换热器被安装在工厂的冷却系统中，以降低能源消耗。