Cherish all kinds of facility and make sure the communication facility in sound running with neatness.
爱护各类设备,保证通讯设备整洁、畅通,维护其正常工作.
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Telecommunication profession scale effects, communication facility's special - purpose, correspondence profession public welfare and so on.
电信行业的规模效应 、 通信设备的专用性 、 通信行业的公益性等等.
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