In one case, an increase in {HEAD ~ extractable energy} from {TAIL ~ the free flowing motive fluid} 202 or relative velocity of the vessel 100 coincides with an increase in demand for load current, therefore necessitating little change in average current passing through the field coil 721 
from
In one case , an increase in { HEAD ~ extractable energy } from { TAIL ~ the free flowing motive fluid } 202 or relative velocity of the vessel 100 coincides with an increase in demand for load current , therefore necessitating little change in average current passing through the field coil 721
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH