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行星保护
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行星保护
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行星探测
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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。
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preliminary design of military aircraft
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Preliminary General Catalogue
preliminary hazard analysis
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preliminary hearing personnel
preliminary interpretation of remote sensing data for geological features
preliminary investigation
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preliminary performance before the big play
Preliminary photography
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preliminary prospected well
preliminary question
Preliminary Research on Archival science theory and history
preliminary study report on Wuhan Regional Planning
preliminary survey
preliminary work of hydropower project
preliminary work of mining design
preload
preloading
prelocalizing subcategory
prelogical
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