Now, that is only for a point mass.

那只是对于一个质点而言的。

youdao

If you are going to push that object that would be really where the equivalent point mass would lie.

给物体一个推力，就等价于推力作用在重心的情况。

youdao

A few months later, Karl Schwarzschild gave the solution for the gravitational field of a point mass, showing that something we now call a black hole could theoretically exist.

几个月之后，卡尔·史瓦西给出了点质量引力场解决方法，表明我们现在称做黑洞某物理论上可以存在。

youdao

In that pre-carbon offset as investment world, the point of mass environmentalism through media was mostly public awareness.

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Long before we reached that point, mass-market business models would become unsustainable.

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It'll likely take years before we'll get to the point of mass production of these things, but in the future we could finally say that batteries do indeed grow from trees.

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