所谓反动度就是动叶栅中蒸汽膨胀的程度占级中总的应该膨胀程度的比例数，或指动叶片中焓降与这一级中静叶片和动叶片的总焓降之比。
分析了弯扭叶片中，叶片力的径向分力对沿叶高反动度的影响，及对变工况时脱流特性的影响。
This paper is intended to analyse how the radial component force which opposed on the bending blades affect the reaction along blade and flow separation characteristics of varying duty.
讨论了变工况下凝汽式汽轮机末级的变工况特点，如反动度的变化规律，余速损失，级前压力的变化特性。
For example, the regular change of reaction degree, the loss of exhausted velocity , the change characteristics of the pressure exerted on the last stage .
通过对实验测量数据与数值结果的对比，验证了低反动度附面层抽吸式压气机概念及其设计方法的可行性。
At last, the low-reaction boundary layer suction compressor concept and its design method is proved by the comparison of the experiment data and numerical results.
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