Backflow

https://www.wikidata.org/wiki/Q4839622

Field Hierarchy

Parent
Engineering 25M papers	Geology 10.4M papers	Mechanical engineering 5.5M papers	Oceanography 2.6M papers
Geomorphology 976k papers		Inlet 113k papers
Current
Backflow 4,987 papers
Child
Backflow prevention device 0 papers

Trends

Notes

History