In the robot pictured here, infrared sensors (on the green rectangle at top right) swivel back and forth and communicate with a host computer to plot out a real-time route.
在这里描绘的机器人,红外感应器就在右上角的绿色矩形来回摆动,与主机电脑通讯绘制出一个实时的路线。
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Road or expressway route number (green). Select the shape on the page and type to change route number.