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.
地震模拟振动台基础实质上是一个给振动台面运动提供反力的质量块，它是振动台可动系统的重要组成部分。
Actually, foundation of shaking table is a mass that provide reaction to table movement and is an important part of the moving system.
第一个可动装置支援的运动员允许副题的你以不同的语言看电影。
First mobile player which supports subtitles - allowing you to watch movies in different languages.
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