“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	the natural state of ethics The Nature Conservancy The Nature of Learning: Using Research to Inspire Practice the nature of the firm The Necessity of Atheism the Needham puzzle The Neighborhood Unit The Neighbourhood The Neonatal Behavioral Assessment Scale The Network Market the network of the oil sand the neutral theory The Newbery Medal for Best Children's Book the new chapter of national policy The New Charter of Athens The New China The New Code revised in Linzhi Ge The Newcomen Society The New County System The New Diary of Joining the Army The New Discussions of Jiandeng The New Doorbell the new economy the new education movement The New-England Courant

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