... 反弦角 angle of aspect 翼弦安放角 chord angle 弦和切线的角 angle between chord and tangent ...
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angle of chord [航] 弦角
angle between chord and tangent 弦和切线的角
deflection angle of chord [机] 弦折角
chord of an angle 他们只讲一个角的弦
Based on the principle of flight of fan wing aircraft, realizing methods of VTOL are preposed by changing the Angle of attack and increasing chord length of the tail.
基于扇翼机的飞行原理，提出通过改变攻角以及增加尾部升力面弦长的方式提高气动效率，进而实现垂直升降的方法。
This article has extended a property of the right Angle chord of the circular cone curve to the general cases.
本文将圆锥曲线的直角弦的一个性质推广到了一般情形。
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