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地面回波 dìmiàn huíbō
gen. background; ground-echo
avia. terra in echo
rem.sens. ground return
space ground echo; terrain echo
telecom. background return; terrain return
地面杂乱回波
space ground return
tech. land return
地面反射回波
telecom. terrain echo
地面回波: 10 phrases in 6 subjects
Aviation1
Explosives and Explosive Ordnance Disposal1
Oil / petroleum1
Space2
Technology4
Telecommunications1