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в первом приближении stresses
gen.	it would be safe to assume that (Пример: В первом приближении дом можно было бы определить как рукотворное сооружение закрытого типа, находящееся в чьей-то собственности. It would be safe to assume that the house is an enclosed structure owned and built by people Dmitry_Arch); in simplistic terms (Alexander Demidov); very tentatively (considering something very tentatively Maria Klavdieva)
astr.	in the first approximation
chromat.	as a first (Игорь_2006)
idiom.	to its simplest extent ("на пальцах" Alex_Odeychuk)
Makarov.	first approximation; on a first approximation
math.	at a first approximation (for, in, to); in a first approximation (аппроксимации; The following expressions are obtained to a first approximation in z.)
media.	first order
nano	a first approximation; to a first approximation; as first approximation
progr.	first-order (ssn)
psychol.	in a gross way (Janice)
tech.	as a first approximation; for a first approximation; in a first approximation; to a first approximation; to the first approximation

в первом приближении: 20 phrases in 11 subjects

Aerohydrodynamics	2
Antennas and waveguides	1
Astronautics	1
Electronics	2
Energy industry	2
Makarov	4
Military	1
Nautical	4
Programming	1
Rhetoric	1
Scientific	1