There's also a second force, called electron degeneracy pressure.

还有第二种力，叫做电子简并压。

But a white dwarf can't: it's ruled by electron degeneracy pressure.

它受电子简并压的控制。

It takes a stellar core at least about three times the mass of the Sun to overcome neutron degeneracy pressure.

恒星核的质量至少是太阳的三倍，才能克服中子简并压。

They occur when a white dwarf increases in mass until electron degeneracy pressure can no longer sustain it against its own gravity.

当白矮星的质量不断增加，直到电子简并压无法在自身引力的作用下维持其质量时，就会形成这种行星。

By the time this electron degeneracy pressure balances the core's immense gravity, the core is only about the size of Earth, 1% the original width of the Sun.

当电子简并压平衡了核心巨大的引力时，它就只有地球那么大，太阳原始宽度的1%。