Assertion: magnetic field's core | /r/HasProperty | wrapped ring
Facets:
value: often
type: TEMPORAL
value: toroidally
type: MANNER
Source sentences:
text: The core is often a toroidally wrapped ring or a pair of linear elements whose drive windings are each wound in opposing directions.
text: The core is often a toroidally wrapped ring or a pair of linear elements whose drive windings are each wound in opposing directions.