Assertion: oscilloscope's trigger | /r/HasProperty | set to the center
Facets:
value: typically
type: DEGREE
value: usually
type: TEMPORAL
Source sentences:
text: Furthermore, the trigger usually is set to the center, and the hold-off is completely rotated counter-clockwise.
text: Typically the trigger can be set to the centre and the hold-off turned fully counter-clockwise.