- flap chord
- 襟翼: wing flap
- 弦: bowstring; string the string ...
- 翼弦: airfoil chord; chord of foil; profile chord; wing chord
- 襟翼: [航空] wing flap◇襟翼保护开关 flap-protection switch; 襟翼操纵线路 flap runs; 襟翼导轨 flap tracks; 襟翼动作器 flap actuator; 襟翼位置警告开关 flap warning switch; 襟翼限制器开关 flap-limit switch; 襟翼阻力 flap drag
- 副翼弦: aileron chord
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