Assertion: diver | /r/CapableOf | practice the use of the specific unit
Facets:
value: before using it
type: TEMPORAL
Source sentences:
text: The operating manual is not available for reference during the dive, so either the diver must learn and practice the use of the specific unit before using it in complex situations, or the operation must be sufficiently intuitive that it can be worked out on the spot, by a diver who may be under stress at the time.