It is part of US ambitions to build a permanent base for humans to live on the lunar surface.
Виктория Кондратьева (Редактор отдела «Мир»)
。WPS官方版本下载对此有专业解读
Source: Computational Materials Science, Volume 266，推荐阅读服务器推荐获取更多信息
Photograph: Julian Chokkattu，推荐阅读一键获取谷歌浏览器下载获取更多信息