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1·The generation, shedding and movement of the single pair vortex street formed in the wake are revealed and discussed.

文中介绍了应用超声涡街流量测量技术测量低速气体的一个实验，并对结果进行了分析。

2·In the experiment, a simplified aircraft model (with tail wing) is employed to construct a 4-vortex wake system consisting of a pair of tip vortices and a pair of counter rotating tail plane vortices.

试验采用简化的飞机模型(有尾翼)，建立了包含一对翼尖涡及一对反向旋转的尾翼涡(通过以负迎角安装尾翼得到)的4涡尾流系统。