About: http://webisa.webdatacommons.org/21492601

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	The above description refers particularly to the case in which the phase of the rotary head 15 lags with respect to the phase of the reference signal.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk