Assertion: clock | /r/ObjectUse | used in some specialist areas
Facets:
value: commonly
type: DEGREE
Source sentences:
text: The 24-hour clock is commonly used there only in some specialist areas (military, aviation, navigation, tourism, meteorology, astronomy, computing, logistics, emergency services, hospitals), where the ambiguities of the 12-hour notation are deemed too inconvenient, cumbersome, or dangerous.