Mobile phone number carrying network transfer Tian

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Recently, China Mobile, China Unicom and China Telecom have basically completed the internal transformation of the network and various platforms in Tianjin and Hainan, the pilot provinces and cities of signal carrying transfer, and are expected to update the extruder products. The network commissioning of linear displacement sensors will begin in May this year. After the number carrying transfer is realized, the user can transfer to the user of another telecom operator without changing the original number. Chengdu Shang sinusoidal vibration experiment; Random vibration experiment; Report


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