紧急电话系统 meaning in English
emergency telephone system
Examples
- Gsm cdma emergency telephone system for highway
公路gsm cdma数字紧急电话系统 - The specifications of wired - emergency telephone system of expressway
高速公路有线紧急电话系统技术要求 - The second category is maintenance of electronic equipment such as highway emergency telephone systems , electronic scoreboards , traffic aids and signal systems
第二类是为电子设备，例如公路紧急电话系统、电子记分板、辅助交通设备及讯号系统等提供维修服务。