这些汽车利用一套包括视频摄像机、雷达传感器和激光测距仪在内的控制系统侦测道路上的其他车辆，同时按照由普通汽车驾驶员制定的预先设定路线行驶。

They use a system of video cameras, radar sensors and laser range-finders to detect other vehicles, while following a pre-set route mapped out by drivers in ordinary cars.

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大眼睛闪烁仪的这个价位对于诸如在印度的普通农民来说，实在是太昂贵了。

That price obviously puts large aperture scintillometers out of the reach of the average farmer in, say, India.

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顺便提一下，大家可能想问：排队等待安检的普通旅客能看出这两种扫描仪的区别吗？

By the way, you might be wondering: Can the average traveler standing in a security line tell the difference?

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