“planetary protection”的概念、定义、翻译、参考文献-科学参考

单词	planetary protection
释义	planetary protection Encyclopedia 工学行星探测释 planetary protection行星保护正向污染行星保护和逆向污染行星保护的统称。在深空探测活动中，确保地球上的生命和物质不污染地外天体，从而避免干扰或误导后续针对生命起源开展的科学探测；同时，还应避免外太空的生命及相关物质危及地球生物圈。
随便看	channel gradient channel guiding herb channeling channeling back channeling effect channeling effect and blocking effect channeling method channeling shaft protection Channeling spring streams and building lofty palaces channel interface channel island Channel Islands National Park channelized receiver channel letter channel management channel matrix channel model channel modeling channel multiplexing channel network Channel NewsAsia Singapore channel noise channel number channel of electrostatic leakage channelography

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