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libration

英 /laɪˈbreɪʃən/美 /laɪˈbreɪʃən/
  • n.
    振动（形容词 librational）；[天]天平动

双语例句

  1. This paper analyzes some kinds of methods for voltage reference self-ca libration system and explains them one by one.
    对几种电压标准自校系统方法进行了分析探讨，并对它们逐个作了研究说明。
  2. Varying regularity of libration period on overweighted compound pendulum was obtained by theoretical reasoning? Research and analysis.
    通过理论推导、研究和分析，得出了加配重复摆振动周期的变化规律。
  3. Libration point orbits have the important applications in deep space exploration, and have been paid more attentions from all over the world.
    平动点轨道在深空探测领域具有重要的应用价值，引起了国内外航天界的密切关注。

网络短语

  • optical libration
    几何平动；光学天平动
  • libration period
    天平动周期
  • libration in latitude
    纬天平动；纬秤动
  • libration in longitude
    经天平动；经秤动
  • geometrical libration
    几何平动

词语扩展

n.
vibrationoscillation
振动（形容词librational）；[天]天平动
vt.
librate摆动；平均

英英释义

  • n.(astronomy) a real or apparent slow oscillation of a moon or satellite

词源

  • libration
    From Latin lībrātiō ‎(“a hurling, swinging”), from lībrō ‎(“poise, cause to swing”).