Assertion: commutator | /r/CapableOf | change in hardness
Facets:
value: whilst in use
type: TEMPORAL
Source sentences:
text: Brushes likewise can be too hard or too soft ~ and both commutator and brushes can change in hardness whilst in use especially in harsh chemical environs.
text: Brushes likewise can be too hard or too soft ~ and both commutator and brushes can change in hardness whilst in use especially in harsh chemical environs.
text: Brushes likewise can be too hard or too soft ~ and both commutator and brushes can change in hardness whilst in use especially in harsh chemical environs.
text: Brushes likewise can be too hard or too soft ~ and both commutator and brushes can change in hardness whilst in use especially in harsh chemical environs.