单词	parking orbit
释义	parking orbit noun : an orbit of a spacecraft from which the spacecraft or another vehicle may be launched on a new trajectory Word History First Known Use 1953, in the meaning defined above
随便看	pine bark pine bark aphid pine barren Pine Barrens pine beetle Pine Bluff pine borer pine bud gall pine bullfinch pine butterfly pine cheat pine colaspis pine cone pine crab pine creeper pine creeping warbler pine engraver pine family pine finch pine for pine gall weevil pine grass pine green pine grosbeak pine grouse

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