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In the past 70 years, China's industrial communication industry has made brilliant achievements, leaping from poverty to the world's largest manufacturing country and network country with complete industrial system. The industrial added value has increased from 12 billion yuan in 1952 to more than 30 trillion yuan in 2018, with an average annual growth of 11%. Great breakthroughs have been made in major fields: "Chang'e" is flying to the moon, "Tiangong" and "Shenzhou" are manned flights, domestic aircraft carriers are officially launched, large passenger planes are successfully launched for the first time, the world's first quantum satellite is successfully launched, the Yangtze Three Gorges shiplift sets a new world record, the proportion of optical fiber broadband users is the first in the world, 4G commercial network has the widest coverage in the world, and 5g network is fully opened
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