Analysis of surface stream and energy fields obviously showed that the squall line occurred behind the surface shear line, and before the convergence area of wind.
地面流场和能量场的分析明显反映出了飑线在地面切变线后部，风向、风速辐合区前部。
Theflow field in the S2 surface with thick blades is calculated by stream line curvature method.
采用流线曲率法计算有厚叶片又流面的流动。
It makes the application of the mean-stream-line method in large space cascade design possible with the optimized given velocity distribution along suction surface also guaranteed.
应用本法计算了一些有严格解的流动，从而给出了推荐使用的展开流线数及计算站数；
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