“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	Risto Rasa Risto Tapani Ahti RI system RIT Rita Dove Rita Hayworth Rita Levi-Montalcini Ri Tan Ritchey-Chretien optics Ritchey-Chretien system Ritchey-Chretien telescope rite of passage rites and arts rites are not applied to civilians,laws are not applied to noblemen rites,just,integrity and sense of honor rites of passage Rites of Zhou Dynasty Rites of Zhou Dynasty,block-printed edition by Tang's House at Wuzhou's Shimenxiang,Song Dynasty ritornello ritornello form RITS RITSC Ritsu-ryō system Ritt Ritt basis theorem

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