About: http://webisa.webdatacommons.org/362136566

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 selection of an appropriate vacuum pump 21 may depend on the size of the reaction chamber 11 and other factors understood by those with skill in the art.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com