PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Without getting into the details, accumulators in hydraulic systems are pressure storage reservoirs containing a hydraulic fluid (considered to be incompressible - meaning does not compress under load - most liquids are like this) that is held under pressure by an external source such as a spring, compressed gas (gases do compress under load!), weights or other mechanisms.
http://www.w3.org/ns/prov#wasQuotedFrom
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