在阿拉巴马州的伯明翰，交通管理员在表格中输入七个“X”以向那些无牌照的不明车辆开出罚单。
Traffic wardens in Birmingham, Alabama, enter seven letter Xs onto their forms when they issue tickets to cars without plates.
第四，“车辆电子标识”的推广将成为交通管理新的亮点。
Fourth, the vehicle electronic identification promotion will become a new highlight of traffic management.
测速雷达是交通管理中监测车辆行驶速度的必备工具。
The speed radar detector is a necessity of monitoring vehicle speed for traffic control.
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