If activated sound and light alarm automatic dialling good set multiple alarm calls if the police and district centres networking signal that can be transmitted to the police district centre.
如启动声光报警器、自动拨叫设定好的多组报警电话，若与小区报警中心联网即可以将信号传送至小区报警中心。
By using a tag light transmitted in different but close wavelength to the data signal as the feedback control, the scheme can demultiplex automatically two orthogonal polarizations in PDM systems.
该方法通过使用一束与信号光波长不同但相近的标记光作为反馈控制，自动地对偏振复用系统中的两路偏振信号进行解调。
By using a tag light transmitted in different but close wavelength to the data signal as the feedback control, the scheme can demultiplex automatically two orthogonal polarizations in PDM systems.
该方法通过使用一束与信号光波长不同但相近的标记光作为反馈控制，自动地对偏振复用系统中的两路偏振信号进行解调。
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