车盖上安装了五个激光雷达单元（LIDAR，光探测和测距）。

Perched atop the vehicle were fiveLIDAR (LIght Detection and Ranging) units.

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目前，欧洲空间局(ESA)自身有两个激光雷达(光探测和测距)任务正在准备中。

Currently, the European Space Agency (Esa) has two lidar (light detection and ranging) missions of its own in preparation.

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与雷达和声纳技术相似，激光雷达(光探测和测距)的工作原理是通过向目标发射电磁波然后根据反射波构建图像。

Like its Cousins radar and sonar, lidar (light detection and ranging), works by broadcasting electromagnetic waves towards a target and then building up a picture from the reflection.

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