The way to improve total pressureefficiency by appropriate inclined cut of airfoil blade tip was studied.
分析了对后拖式机翼型叶片的叶尖进行适当切割，可以提高全压效率的原因。
2
The measurements show that the airfoil blade fan prevails over the plate one in the aspects of total pressureefficiency, 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；
3
Too much pressure may account for your recent low efficiency in study.