迎角，机翼翼弦在空气中向前运动时与自由气流之间的夹角。
Angle of ATTACK, the Angle of the wing chord in relation to the free stream airflow as it moves forward through the air.
这种紊流使风洞内的流谱与在较高的雷诺数下自由气流中的流谱相似。
This turbulence caused the flow pattern in the tunnel to be similar to the flow pattern in free air at a higher Reynolds number.
有效阻隔风雨对室内的侵袭，具有防风挡雨的功能，由于气流的反射作用，即使开空调也不用关闭纱窗，可自由交换新鲜空气。
The effective barrier to indoor storm hit, with wind rain, due to the reflection of the airflow, even if the air conditioning is not turn off the screen, can be a free exchange of fresh air.
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