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单词
ground control
释义
ground control personnel, system or equipment (stationed on the ground) whose job is to ensure the safe flight of aircraft or spacecraft (保证飞行器安全飞行的)地面导航人员、 系统或设备.
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upper case
upper-cut
uppermost
uppish
upright
uprightness
upright piano
uprising
uproar
uproarious
uproariously
uproot
upset
upshot
upside-down
upstage
upstairs
upstanding
upstart
upstream
upsurge
upswing
uptake
uptight
up-to-date
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更新时间:2026/6/16 10:44:58