The flow near the stall point was therefore improved, and the stable operation range was expanded.
因此，静叶弯曲后改善了近失速点的流动，扩大了低速压气机的稳定工作范围。
The measurements show that the airfoil blade fan prevails over the plate one in the aspects of total pressure efficiency, stable operation range and high efficient operation range.
试验结果表明机翼型叶片在全压效率、稳定运行范围及高效运行范围比相应的板型叶片具有优越性；
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