Compressed air

https://www.wikidata.org/wiki/Q143746

Field Hierarchy

Parent
Physics 33.7M papers	Chemistry 29.5M papers	Engineering 25.7M papers	Organic chemistry 13.2M papers
Mechanical engineering 5.6M papers		Thermodynamics 5.2M papers
Current
Compressed air 7,250 papers
Child
Compressed-air vehicle 0 papers	Compressed air filters 0 papers	Compressed air car 0 papers	Compressed air foam system 0 papers

Trends

Notes

History