基本解释跨声速叶片英汉例句双语例句The shock structure in a transonic compressor with the low aspect ratio of blading is three dimensional.在低展弦比、低轮毂比的轴流压气机中激波结构常常是三维的。hkxb.buaa.edu.cn专业释义航空、航天科学技术穿音桨叶