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Randzone f
gen.	fringe
biol.	edge
commun., IT	fringe area
construct.	suburban area; suburban zone
el.	barrier layer; boundary layer
geomech.	boundary zone
health.	penumbra
IT, dat.proc.	hot zone
med.	protoplasmic current; marginal area
phys.	border zone; marginal region; marginal zone; peripheral region; peripheral zone; periphery
tech.	boundary region; edge region; margin area; outer zone; edge zone; surface layer

Randzone: 18 phrases in 6 subjects

Construction	1
General	2
Medical	9
Metallurgy	4
Microelectronics	1
Mining	1