Abstract: The renewed interest in returning human and robotic explorers to the lunar surface has identified a need for a renewed understanding of lunar geotechnical properties related to landing, ...
Operating on other planets pushed NASA to rethink even the most basic technology. To handle extreme terrain, temperature swings, and vacuum conditions, engineers redesigned the wheel from the ground ...
一些您可能无法访问的结果已被隐去。
显示无法访问的结果