Optical communications repeater

https://www.wikidata.org/wiki/Q3935725

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Computer science 61.9M papers	Physics 33M papers	Chemistry 28.9M papers	Engineering 25M papers
Materials science 18.5M papers	Quantum mechanics 13.3M papers	Organic chemistry 12.9M papers	Composite material 8.7M papers
Optics 8.1M papers		Electrical engineering 4.8M papers
Current
Optical communications repeater 1,105 papers
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