When I went to visit the college town in Guangzhou, I was impressed by the clean and quiet environment.
当我去参观广州的大学城时，我对那里干净和安静的环境留下了很深的印象。
Based on the design of the college-town section of the Guangzhou metro line 4, the optimal scheme design on the metro radio dispatching communication system is introduced.
结合广州地铁4号线大学城专线段设计，对地铁专用无线通信系统的方案优化进行了介绍。
Based on the design of the college-town section of the Guangzhou metro line 4, the optimal scheme design on the metro radio dispatching communication system is introduced.
结合广州地铁4号线大学城专线段设计，对地铁专用无线通信系统的方案优化进行了介绍。
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