Assertion: motor | /r/HasProperty | run in series
Facets:
value: off the direct-current supply
type: OTHER
value: for heavy loads
type: PURPOSE
value: for slow operation
type: PURPOSE
Source sentences:
text: A further measure of control is provided by using pairs of motors on a vehicle in series-parallel control; for slow operation or heavy loads, two motors can be run in series off the direct-current supply.