About: http://webisa.webdatacommons.org/147685103

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	Thus, in accordance with one embodiment, the auxiliary provides also a gas stream that flows over such optical surfaces so as to clean such surfaces from any liquid film or droplets that may form thereon.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com