CHORD - distance from leading to trailing edge of a wing.
弦—从机翼前缘到尾缘的距离。
BALANCE TAB, a small hinged moveable part on the trailing edge of a control surface (aileron, elevator, rudder).
随动补偿片，铰接在操纵面后缘(副翼，方向舵，升降舵)的可动部。
AILERON, a hinged moveable part on the trailing edge of each wing for airplane roll (wing up and wing down) control.
副翼，铰连在每个机翼后缘的可动部件，用于控制飞机的滚转(机翼向上和向下)。
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