Assertion: diver's umbilical | /r/HasProperty | snagged
Facets:
Source sentences:
text: These signals are not generally applicable to a diver who is supplied directly by umbilical from the surface, but if the umbilical is snagged and rope signals cannot be transmitted, these signals may be provided by hat light flashes and helmet flush (blowing gas from the helmet in a continuous stream by opening the free-flow valve or pressing the purge button).