air-sea rescue
ˌair-sea ˈrescueBrE 
NAmE 
noun [countable, uncountable] (especially BrE)the process of rescuing people from the sea using aircraft
an air-sea rescue helicopter
ˌair-sea ˈrescueBrE NAmE noun [countable, uncountable] (especially BrE)the process of rescuing people from the sea using aircraftan air-sea rescue helicopter
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