Assertion: heavy water | /r/ObjectUse | used as reflector materials
Facets:
value: as coolant materials
type: MANNER
value: among the major moderator
type: OTHER
value: among reflector materials
type: OTHER
Source sentences:
text: Among the major moderator and reflector materials, light water and heavy water are used, not only as moderator and reflector materials but also as coolant materials.