Antenna system maintenance and measurement: precision gang switch and support device.
天调系统维护与测量：精密的同轴开关以及配套器件。
The switching and maintenance software is an important component and the system platform of the switch software.
交换与维护软件是交换机软件的重要组成部分和系统平台。
The 5ESS switch system is designed to provide cost-effective, flexible and reliable mechanization and centralization of maintenance and administrative functions.
ESS交换机系统提供低廉、灵活、可靠的机械和集中化控制及管理的功能。
The 5ESS switch system is designed to provide cost-effective, flexible and reliable mechanization and centralization of maintenance and administrative functions.
ESS交换机系统提供低廉、灵活、可靠的机械和集中化控制及管理的功能。
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