Mass media allow us to record and pass information rapidly to a large, scattered audience.
大众媒体让我们能够记录信息、并且能向数量庞大且分散的观众快速传达信息。
The gap between them will change as the ships pass over regions of higher and lower mass, providing clues to the density of the subsurface moon.
两个飞行器间的距离会随着飞船经过的区域的密度高低的变化而改变,为月球表面的密度提供线索。
They have a minuscule mass, no electric charge, and pass through almost any material as though it was not there.
它们质量极小,不带电荷,可以穿透几乎任何物体而不留痕迹。
A typical problem that you may have done in your first pass at Newton's law, someone tells you a force of 36 Newtons is acting on a mass of whatever, 4 kilograms; what's the acceleration?
在你们第一次接触牛顿定律时,可能见过这么一道典型题目,告诉你,一个 36 牛的力,作用在一个物体上,4 千克吧,问加速度是多少
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