Assertion: barge's power | /r/HasProperty | proportional
Facets:
value: directly
type: MANNER
value: to the working head
type: TRANSITIVE-OBJECT
Source sentences:
text: The potential power that can be derived from a volume of water is directly proportional to the working head, so that a high-head installation requires a smaller volume of water than a low-head installation to produce an equal amount of power.