选择六种不同的叶梢间隙研究叶梢间隙对导管桨性能的影响。
The effects of tip clearance on duct propeller's performance were investigated in six different tip clearances.
本文用涡动力学理论分析了锯齿形叶梢对螺旋桨的梢涡的影响。
The effect of the sawtooth shape tip on tip vortex of the propeller is studied with the theory of vortex dynamics in the paper.
通过对短穗和茶枝梢头扦插的试验研究，得出茶枝梢头扦插优于短穗扦插，梢头扦插又以三叶梢效果最好的结论。
Through the experimental research on single node and poly-leaves cutting, we concluded that poly-leaves cutting is better than single node cutting, and three-leaves cutting is best in effect.
应用推荐