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 horizontal stabilizer and elevator in the tail assembly of an aircraft.
飞机尾部的水平稳定器和升降舵。
The main reason that caused the accident of this plane was a malfunction of the elevator.
这架直升飞机失事的主要原因是升降舵失灵。
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