Assertion: nuclear reactor | /r/HasProperty | light water designs
Facets:
Source sentences:
text: The nuclear reactors in use in the U.S. are all light water designs.
text: The family of nuclear reactors known as light-water reactors (LWR), cooled and moderated using ordinary water, tend to be simpler and cheaper to build than other types of nuclear reactors[citation needed]; due to these factors, they make up the vast majority of civil nuclear reactors and naval propulsion reactors in service throughout the world as of 2009.