event horizon

短语

重大的转折点。“事件穹界”, 指黑洞的边界

发音

US /əˈvɛnt həˈɹaɪ.zən/
US /-zɪn/
US /əˈvɛɾ̃ həˈɹaɪ.zən/
US /əˈvɛn -/

词形变化

event horizons 复数 event horizons

释义与例句

n.
  1. 1.

    The gravitational sphere of a black hole within which the escape velocity is greater than the speed of light.

    事界

    事件视界

    事件穹界

    天文
  2. 2.

    The furthest distance in the past of the universe from which light signals from an event can reach an observer at later times.

    天文
  3. 3.

    A point of no return.

    比喻 引申义