PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • 1.Structure features: Sand washing machine is composed of a gear, reducer, rack, sedimentation tank, impeller, belt wheel, motor and other important components.
http://www.w3.org/ns/prov#wasQuotedFrom
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