Global variables to switch triggers off for maintenance.
使用全局变量关闭触发器以进行维护。
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。
Warning: Switch off main power supply before maintenance!
警告：维护前请先切断主电源！
Switch off main power supply before maintenance.
维护前请切断主电源。
As such, it can be used to replace the conventional safety switch during mechanical maintenance.
同样地，在维修期间其可用于代替传统的安全开关。
As such, it can be used to replace the conventional safety switch during mechanical maintenance.
同样地，在维修期间其可用于代替传统的安全开关。
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