Assertion: heavy water | /r/CapableOf | serve as moderator
Facets:
value: simultaneously
type: MANNER
Source sentences:
text: Germany then found that heavy water can also serve as a moderator.
text: The fuel elements are in the form of elongated tubes and are disposed within outer tubes extending through a tank containing heavy water, which acts as a moderator.
text: In reactors it serves as a moderator and coolant simultaneously.