The device, called an Opticon, is similar to what firefighters use to change lights when they respond to emergencies.
这种装置又被称作Opticon，与消防员应对突发事件时改变信号灯的装置相似。
City traffic engineer Joe Olson said traffic engineers plan to update the city's Opticon system this year to block unauthorized light-changing signals.
朗蒙特市交通工程师奥尔森指出，他们计划在今年更新该市的Opticon系统，查处那些未经许可擅自使用的改变信号灯装置。
City traffic engineer Joe Olson said traffic engineers plan to update the city's Opticon system this year to block unauthorized light-changing signals.
朗蒙特市交通工程师奥尔森指出，他们计划在今年更新该市的Opticon系统，查处那些未经许可擅自使用的改变信号灯装置。
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