This would allow the lighter object to create drag and slow the heavy one down.
这时较轻的物体会对较重的物体产生一个拽力,使得重物的下落速度变慢。
Air in the atmosphere's outermost layer is very thin, but air molecules still create drag that slows down satellites, requiring engineers to periodically boost them back into their proper orbits.
大气最外层的空气非常稀薄,但空气分子仍能产生阻力减慢人造卫星的速度,这样工程师们就得定期把它们推回到其正确的轨道上。
To create a lost message, drag the message to an empty area of the diagram.
如果您想要创建一个丢失的消息,那么您可以将一条消息拖拉至图表的空白区域。
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