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。
Anesthesia is used during operations and other medical procedures to block pain signals from traveling through the nervous system.
麻醉被用于手术和其它医疗程序中，以阻止疼痛信号在神经系统中传导。
Anesthesia is used during operations and other medical procedures to block pain signals from traveling through the nervous system.
麻醉应用于手术或者其他医疗程序中以组织疼痛信号传向神经系统。
Anesthesia is used during operations and other medical procedures to block pain signals from traveling through the nervous system.
麻醉应用于手术或者其他医疗程序中以组织疼痛信号传向神经系统。
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