Assertion: refrigeration | /r/HasProperty | necessary
Facets:
value: to maintain safe conditions
type: PURPOSE
value: sometimes
type: DEGREE
Source sentences:
text: Sometimes refrigeration is necessary to maintain safe conditions in the process or product to avoid accidents or chain reactions, e.g. in compounds with a low boiling point.
text: When transporting temperature-sensitive foodstuffs and other materials by trucks, trains, airplanes and seagoing vessels, refrigeration is a necessity.