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опасная среда stresses
construct.	hostile environment
ecol.	hazardous environment
O&G, sakh.	hazardous medium
sec.sys.	high-threat environment

опасная среда: 33 phrases in 21 subjects

Aviation	1
British usage, not spelling	1
Caspian	1
Chemistry	1
Construction	3
Ecology	1
Electrical engineering	1
Electronics	1
Energy industry	5
Environment	1
European Union	1
Firefighting and fire-control systems	1
General	3
Makarov	3
Medical	1
Quality control and standards	1
Security systems	3
Technology	1
Tengiz	1
United Nations	1
Water supply	1