Assertion: technical diving | /r/CapableOf | complete complicated dives
Facets:
value: at depths
type: LOCATION
Source sentences:
text: Helium based breathing gasses such as Trimix are only used by serious technical diving who use it to either go deeper than air would allow, or to stay ‘sober’ while completing complicated dives at depths greater than 30 metres, such as long cave/wreck penetration, or scientific research.