rotary header的用法和樣例：
例句
- The unreasonable configuration of the header is one of the dominant causes which result in the flow maldistribution in PFHE.
不合理的封頭結構是引起換熱器內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.
並在原有的實驗裝置上，對不同結構封頭的換熱器進行換熱實驗研究。
