升降舵，铰连在水平安定面后缘上的可动部件。用以操纵飞机的俯仰运动(机头朝上及朝下)。
ELEVATOR, a hinged moveable part on the trailing edge of the horizontal stabilizer for airplane pitch (nose up and nose down) control.
俯仰轴—又称水平轴或横轴。由飞机的一侧通向另一侧。飞机绕此轴转动即造成机首的俯与仰。俯仰控制是由升降舵来达成的，水平安定面则为配平之用。
Pitch axis - Horizontal or lateral axis, passes through the airplane from one side to the other - nose up and nose down control is by elevators (and stabilizer for trim).
从飞机一侧通向另一侧的水平轴或横轴。升降舵控制机头绕此轴作上下的运动。(水平安定面则用以配平。)
Horizontal or lateral axis, passes through the airplane from one side to the other - nose up and nose down control is by elevators (and stabilizer for trim).
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