Assertion: heavy water's hydrogen | /r/CapableOf | return to the tower
Facets:
value: as the vapour stream
type: MANNER
Source sentences:
text: On leaving the tower the water entered an electrolysis cell where it was partially electrolysed; the hydrogen and some of the un-dissociated water returned to the tower as the vapour stream while the rest of the water—enriched in D 2 O—entered a subsequent tower for further concentration.