“lunar relay”的概念、定义、翻译、参考文献-科学参考

单词	lunar relay
释义	lunar relay Encyclopedia 工学月球探测释 lunar relay月球中继通过单颗中继卫星或中继星座，为处于地面测控通信系统无法直接覆盖到的环月轨道飞行器、月球背面或两极地区的月面着陆器、进行月面活动的航天员或月球车等提供导航定位、通信中继、测轨定轨等服务的技术手段。
随便看	personal dose limit personal dose limit; individual dose limit personal dose monitoring instruments personal dosimeter personal equation personal error personal exposure personal file personal freedom personal genomics personal hygiene in sexual life personal identification personal identification number personal information personal information management personal information management, PIM personal information protection Personal Information Protection and Electronic Documents Act personalism personalism probabilistic logic personalist ethics personalistic theology personality personality adjustment personality art education

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