PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • In FIG. 5, Q1, Q2, Q3, Q4 and Q5 are operational amplifiers, R1, R2, R3, R4, R5, R6, R7 and R8 are resistors, C1 is a capacitor, and SW1 and SW2 are contacts of the optical conduction detector sensor 24.
http://www.w3.org/ns/prov#wasQuotedFrom
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