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low-level transit routes
gen.	couloirs de pénétration et de recueil
low level transit route
gen.	route de transit à basse altitude
English thesaurus
low level transit route
mil., logist.	A temporary corridor of defined dimensions established in the forward area to minimize the risk to friendly aircraft from friendly air defenses or surface forces. (FRA)
Low-Level Transit Route NATO
avia., abbr.	LLTR
low-level transit route
USA	A temporary corridor of defined dimensions established in the forward area to minimize the risk to friendly aircraft from friendly air defenses or surface forces (JP 3-52)