About: http://webisa.webdatacommons.org/282745856

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	Fastening devices such as screws (not shown) connecting the two body portions 16 and 18 compress the quartz window 20 into an O-ring 22, ensuring a fluid-tight chamber 24.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com