质量是最明显的，一个更敏感的衡量标准是旋转。

Mass is the most obvious. A more subtle measurement is spin.

youdao

黑洞的性质真正在定义上包括质量、电荷及旋转。

Properties of black holes are indeed be defined by its mass, charge, and spin.

youdao

黑洞的性质真正在定义上包括质量、电荷及旋转。

Properties of black holes are indeed be defined by its mass, charge, and spin.

youdao