The third and final stage was to lift the entire structure into the air, by which time the hull was also supported from below.

第三个阶段，也是最后一个阶段，是把整个建筑升到空中，这时船体也在下面起支撑作用。

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As a result of it, the wake of air forced backwards by one segment of the snake's undulating body may provide extra lift to the segment behind in the sidewinding glide.

这样，摆动树蛇的身体的前半部分擦过的空气尾流可对侧风滑行的后半部分起到提升的作用。

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A landing gear drop test method is presented in this paper, in which the lift is simulated by an air actuator and accumulator system with constant pressure.

结合某型号飞机试验任务，阐述有关空气作动筒仿升的起落架落震试验方法。

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