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избыточное население stresses
gen.	excess population; overflow of population
archit.	spill-over
ecol.	overpopulation
econ.	surplus population; redundant population (Drozdova)
Makarov.	an overflow of population; excrescent population; exuberant population; the excrescent population
sociol.	overspill population

избыточное население: 3 phrases in 2 subjects

General	1
Makarov	2