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单词 posigrade rocket
释义

posigrade /pozˈi-grād/ (aeronautics and astronautics)

adjective
  1. Having or producing positive thrust
  2. Of or relating to a posigrade rocket
ORIGIN: Positive in contrast to retrograde

posigrade rocket noun

A small propellant rocket that is fired to give forward acceleration when required, esp on a multi-stage rocket when jettisoning a redundant stage

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更新时间:2024/12/23 9:13:55