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1. A repeater is a network device used to regenerate a signal.
   中继器是用来再生讯号的网路设备。
2. But a traditional repeater destroys the quantum states of the photons, such as their planes of polarisation.
   然而传统的中继器会破坏光子的量子形态，正如时他们的水平面发生偏振。
3. The message is sent to a Hub Transport server.
   邮件被发送到集线器传输服务器。
4. An unknown device has exceeded the current limits of its hub port.
   一个未知设备超过了其集线器端口的当前限度。