But the space agency is also looking earthward, hoping to build a radar system that could peer through trees, clouds and other obstructions to find lost planes and hopefully save lives.

• 但是另一方面太空署也着眼于地面，希望能构建一个雷达系统能够穿透树林，云层和其他的障碍物来寻找失事飞机和挽救生命。