“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	Cave Nebula Cave of Altamira Cave of Stone Flower Scenic and Historic Area cave painting cave rescue cavern caverna cavernous body cavernous hemangioma of the liver cavernous malformation cave rock painting cave sediment microbes Caves in the Swabian Jura caves of scenic regions Cave Temple cave temple Cave tombs at Bamashan Cave Tombs of Han Dynasty　at Mahao Cave Tombs on the Mahao River caving method cavitating flow cavitating hydrofoil cavitation cavitation and embolism cavitation breakdown

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。