heat-transfer passage

例句：

1. 1.The heat-transfer passage is crucial for the efficient operation of the heating system.
   传热通道对于加热系统的高效运行至关重要。
2. 2. The engineer designed a new heat-transfer passage to improve the efficiency of the cooling system.
   工程师设计了一种新的传热通道，以提高冷却系统的效率。
3. 3.The heat-transfer passage is essential for maintaining the temperature balance in the engine compartment.
   传热通道对于保持发动机舱的温度平衡至关重要。