About: http://webisa.webdatacommons.org/65682435

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	Therefore, what is needed in the art is an apparatus and method which enable the precise injection of a very low concentration of at least one gas into a system.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca