Radar altimeter

https://www.wikidata.org/wiki/Q1104030

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Computer science 54.8M papers	Physics 31.7M papers	Engineering 23.9M papers	Geography 11.1M papers
Geology 9.1M papers	Telecommunications 4.3M papers	Meteorology 2.6M papers	Aerospace engineering 2M papers
Remote sensing 1.1M papers		Geodesy 727k papers
Current
Radar altimeter 2,357 papers
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