The red line shows the Lander's true position, the blue line the position measured by radar.

红线显示了登月舱的实际位置，蓝线显示了雷达度量的位置。

youdao

Each Global Hawk has infra-red and radar sensors, and a surveillance range of 100 miles.

ECONOMIST: Unmanned aircraft

The aircraft uses video images, infra-red and radar sensors to locate targets at day and night.

BBC: News | In Depth | Military Fact Files

The Predator comes equipped with radar, seven video cameras, an infra-red sensor and a powerful zoom.

BBC: US-Mexico border: Efforts to build a virtual wall