Backflow

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

Field Hierarchy

Parent
Engineering 25.7M papers	Geology 10.6M papers	Mechanical engineering 5.6M papers	Oceanography 2.6M papers
Geomorphology 994k papers		Inlet 116k papers
Current
Backflow 5,133 papers
Child
Backflow prevention device 0 papers

Trends

Notes

History