1. The damping effect of the honeycomb can reduce the influence of the inlet preswirl on the total temperature difference.
   蜂窝面的阻尼作用会削弱预旋对密封内温升特性的影响；
2. Some suggestions have been obtained.First, the precondition of adopting counter-rotation scheme is that the narrowed range of preswirl would still satisfy the engine cycle requirements.
   使用对转叶轮机方案前提条件是对转导致的气流预旋范围能满足总体循环提出的要求；

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