periselene

名词 n.
中文释义

英文释义

名词 n.
  1. Synonym of pericynthion.
    — A zero or partical burn, not complicated by guidance malfunction, which results in a velocity of more than 7550 ft/sec at periselene places the prime transport vehicle (PTV) on a hyperbolic escape trajectory out of the lunar sphere of influence.
0 次浏览 数据来源: Wiktionary