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Terms for subject Space containing issue | all forms | exact matches only
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critical operational issue关键作战问题
issue of data数据期号 (表示 GPS 卫星数据新旧程度的参数)
issue of data, ephemeris卫星轨道参数的期号 (表示轨道参数的新旧程度)
ready for issue准备发行[发放]