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行星保护
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行星保护
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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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construction standard of vocabulary
construction steel
construction supervision system
construction supervision system of water conservancy project
construction supply chain management
construction survey
construction survey for shaft sinking
construction technological innovation and management
construction technology of earthwork engineering in ancient China
construction technology of port hydraulic buildings
construction technology of stone works in ancient China
construction theory of functions
construction transportation
construction unit
construction ventilation
construction waste residue
construction wet lay nonwoven
construction winches
construction with ruler and compasses
construction worker
construction work zone
constructive
constructive analysis
constructive arithmetic
constructive calculus
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