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нерешённая задача stresses
gen.	unconquered challenge (Alex_Odeychuk)
energ.ind.	set-aside task
math.	open problem
math., lat.	desideratum
publ.law.	gap (roman kulchynskyi)
tech.	unsolved problem
нерешённые задачи
gen.	remaining challenges (Alexander Matytsin); set asides; outstanding issues (Alexander Demidov)
math.	unsolved problems
qual.cont.	set-asides

нерешённые задачи: 1 phrase in 1 subject

Caspian

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