| http://www.w3.org/ns/prov#value | - A magnetic resonance imaging magnet comprising a pair of superconducting coil units spaced apart from one another along a substantially horizontal axis, each said coil unit including a coil of a superconducting material extending generally in a vertical plane coaxial with the axis and a vessel surrounding the coil, said vessel having a wall, each said coil unit further including a plurality of elo
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