About: http://webisa.webdatacommons.org/101149020

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The expansion of this air causes the piston to move in a desired direction.Covering the piston is a diaphragm.
http://www.w3.org/ns/prov#wasQuotedFrom	articles.org