What you see over here, this yellow thing, this is not a death ray.  This is just to show you that if you have cameras or different types of sensors -- because it is tall, it's 1.8 meters tall -- you can see over obstacles like bushes and those kinds of things.
这里面黄色的区域，不是死光。 这演示的是装有一部摄像机 或者其他类型的传感器， 因为机器人个高，有1.8米高， 可以从灌木丛之类的障碍物上方露出头观察。