路桥护栏制成发光灯管，再配以程序控制、夜晚点亮并按一定方向流动，引导行人及车辆的进行方向。
The programmed guard rail lamps for road and bridge light in certain sequence to guide the pedestrian and vehicles.
路桥护栏制成发光灯管，再配以程序控制、夜晚点亮并按一定方向流动，引导行人及车辆的进行方向。
The programmed guard rail lamps for road and bridge light in certain sequence to guide the pedestrian and vehicles.
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