One dream investigator raised or lowered the hospital bed of dreaming test subjects and upon awakening, some of them reported dreams of falling or flying.

一个梦境研究者在试验中升起或降低床的高度，一些试验者醒过来后说他们感受到了升起和下落。

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The plane was flown by NASA for 19 years as a "flying test bed, " according to the Smithsonian National Air and Space Museum, as well as a chase plane.

这架飞机是飞往美国航天局19为“飞行试验台年，”根据史密森国家航空航天博物馆，以及一个追逐飞机。

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