propeller blade短语⁸⁴³²⁰⁺⁸ 基本例句 螺旋桨叶片 This paper sets the theoretical and numerical method predicting the unsteady pressure distribution on the propeller blade surface by using perturbation potential based on surface panel method. 本文建立了扰动速度势面元法预报螺旋桨表面非定常压力分布的理论和数值方法。 ilib