史瓦西半径 meaning in English

schwarzschild radius

The schwarzschild radius of a solar mass black hole is about 3 km
太阳质量的黑洞的史瓦西半径约为3公里。
The region inside the event horizon is defined to be the region of space occupied by the black hole
在史瓦西半径以内的范围，被定义为黑洞所占有的空间。
The schwarzschild radius is now known to be the radius of a non - rotating black hole , but was not well understood at that time
史瓦西半径就是现在知道的非旋转黑洞半径,但是在那时不是很好理解。