event horizon视界线
天文学术语。指黑洞的边界。在此边界以内的光无法逃离。
event horizon
event horizon
n.（名词）
The region, usually described as spherical, marking the outer boundary of a black hole, inside which the gravitational force is strong enough to prevent matter or radiation from escaping.
地平线现象：通常被形容为球面的区域，为黑洞外表分界线的标记，在该标记之内其重力大到足以让所有的物体或是光线无法逃离