采用了基于多边形凸包的方法提取弦线。
Based on polygon convex hull method, the chord line is extracted.
详细阐述了弦线矢矩处理程序和注意事项。
Treatment process of chord distance and points for attention are expatiated in detail.
安装角， 飞机的纵轴与机翼弦线所形成的锐角。
ANGLE OF INCIDENCE, The acute angle which the wing chord makes with the longitudinal axis of the aircraft.
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