intelligent traffic semaphore 智能交通信号机
The XATM Intelligent Traffic Semaphore has passed the check and accept presided by Shaanxi Science & Technology Committee, and the use of it is being popularized in Xi'an.
目前XATM智能交通信号系统已通过了陕西省省级验收，并且已经在西安市推广使用。
A semaphore is to your system what a traffic signal is to an intersection: a mechanism that keeps things running smoothly.
信号量对于系统的作用就像是十字路口的信号灯：一种保持系统运行顺畅的机制。
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