文中还就最佳直径问题，将新图谱与以前发表的三叶至五叶B型螺旋桨图谱作了比较。

On the optimum diameter problem of3 to 5 blade B-propellers, the new diagrams are compared with the old ones.

youdao

文中还就最佳直径问题，将新图谱与以前发表的三叶至五叶B型螺旋桨图谱作了比较。

On the optimum diameter problem of3 to 5 blade B-propellers, the new diagrams are compared with the old ones.

youdao