About: http://webisa.webdatacommons.org/6467198

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	In turn, said coils 4,4??? are surrounded by an external shield 3, as shown by FIG. 3, not including solenoidal coil 1 or the circuit associated for the generation and control of field H0.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca