上面的雷达影像在两天前，由位于美国加利福尼亚金石的深空网络雷达望远镜拍摄的。
The above radar image was taken two days ago by the Deep Space Network radio telescope in Goldstone, California, USA.
宇宙飞船的位置可以根据追踪它的无线电信号来确定，也可以用望远镜和雷达来确定。
A spaceship's position can be located by following its radio signal, or by using telescopes and radar.
雷达扫描到了它（上图就是一幅雷达扫描结果），望远镜追踪了它的轨迹。
Radars scanned it (the image right is one result) and telescopes tracked its path.
应用推荐