Piping

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

Field Hierarchy

Parent
Physics 33.6M papers	Engineering 25.6M papers	Environmental science 9M papers	Mechanical engineering 5.6M papers
Thermodynamics 5.2M papers		Environmental engineering 994k papers
Current
Piping 25.5k papers
Child
Atmospheric duct 1,447 papers		Canalisation 735 papers

Trends

Notes

History