“月球中继”的概念、定义、翻译、参考文献-科学参考

单词	月球中继
释义	月球中继 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	powder diffractometer powder dividing doses powder down powdered activated carbon powdered activated carbon treatment process powdered drink powdered rubber powder extrusion molding powder feed rate of metal melting deposition powder fertilizers machinery powder fire extinguishing agent powder for coating powder for dry seed treatment powder forging powder forming powder identification powder impetus powdering powder injection molding powder insulation powder jet deep mixing reinforcement machine powder metallurgical gear powder metallurgy powder metallurgy alloys for electrical applications powder metallurgy alloy steels

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。