rotary header的用法和样例：
例句
- The unreasonable configuration of the header is one of the dominant causes which result in the flow maldistribution in PFHE.
不合理的封头结构是引起换热器内部物流分配不均的主要因素。 - Experiments on the heat transfer performance of PFHE with traditional and improved header were also done using the former experimental equipment.
并在原有的实验装置上，对不同结构封头的换热器进行换热实验研究。
