Piping

https://www.wikidata.org/wiki/Q3679502

Field Hierarchy

Parent
Physics 33M papers	Engineering 25M papers	Environmental science 8.8M papers	Mechanical engineering 5.5M papers
Thermodynamics 5.1M papers		Environmental engineering 971k papers
Current
Piping 25.2k papers
Child
Atmospheric duct 1,434 papers		Canalisation 726 papers

Trends

Notes

History