求翻译：随着工作人员的介绍与操作，20块DID液晶拼接大屏幕上的画面开始不停变化，大小屏幕切换显示，不同的路口迅速切换，路上的车辆、行人及道路周边的情况清晰可见。 体验了交通的智能化管理，师生们又体验了一线交通民警的日常工作。站岗执勤、纠正违法、巡逻、接处警……大学生们现场体会到了交警的辛苦，大家感受很多。“有了这些特殊的体验和经历，从这一刻起，我们在心里对交警更加敬佩。”一位大学生的话代表了大家的心声。是什么意思？

With the introduction and operation of the staff, 20 did LCD mosaic picture on the big screen ever-changing size of the screen to switch the display, quickly switch between different junctions, road vehicles, pedestrians and road around the clearly visible. Experience the intelligent management of t

Along with the staff of the introduction and operation, 20 blocks DID LCD stitching on the big screen beginning picture is changing, and screen size, switch to display different road junctions, and rapid switching of vehicles on the street, pedestrians and road conditions around the visible. Experie

With the introduction and operation of staff, 20 blocks DID LCD tiled picture constantly changes at first on the big screen, switches the display to show the size screen, various junction fast switching