Piping

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

Field Hierarchy

Parent
Physics 31.7M papers	Engineering 23.9M papers	Environmental science 7.7M papers	Mechanical engineering 5.3M papers
Thermodynamics 5M papers		Environmental engineering 949k papers
Current
Piping 23.8k papers
Child
Atmospheric duct 1,388 papers		Canalisation 717 papers

Trends

Notes

History