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。
The invention discloses an intelligent balance drive elevator, which is used in situations of high-rise buildings requiring elevators.
本发明公开了一种智能型平衡驱动电梯，用在高层建筑物需要电梯场合。
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