For any object, there is a critical radius, called the Schwarzschild radius, at which its mass will form a black hole.

对于任何一个物体，都存在一个被称为史瓦西半径的临界半径，在这个半径以内的质量将形成一个黑洞。

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If you know what m is, the mass of an object, the radius, and you know the values for C1 or C2 of that medium in which you move it, then you can calculate what the terminal velocity is.

如果你知道M是什么，是物体的质量，半径，知道C1值或者，媒介的C2值，然后你，就能算出终极速度。

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