About: http://webisa.webdatacommons.org/178741391

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 interstage exhausting device may be one capable of adjusting the air pressure of the surrounding area including the area of first and second stages holding the two panel elements to a level lower than the atmospheric pressure.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com