Russian ⇄ English

критически важный stresses
gen.	critically important (Sergei Aprelikov); essential (1) absolutely necessary; extremely important: [with infinitive]: it is essential to keep up-to-date records | fibre is an essential ingredient of our diet ¦ [attrib.] fundamental or central to the nature of something or someone: the essential weakness of the plaintiff's case 2) (of an amino acid or fatty acid) required for normal growth but not synthesized in the body and therefore necessary in the diet 3) Medicine (of a disease) with no known external stimulus or cause; idiopathic: essential hypertension. NOED Alexander Demidov); crucial (Mr. Wolf); vital (alikssepia); being of critical importance (ABelonogov)
Игорь Миг	pivotal
econ.	critically needed (Alex_Odeychuk)
IT	mission-critical (Alexander Demidov)
O&G, sakh.	critical (pipa1984)
softw.	mission-critical (microsoft.com Alex_Odeychuk)

критически важное: 109 phrases in 34 subjects

Astronautics	1
Automated equipment	2
Banking	1
Business	3
Business style	1
Caspian	6
Cliche / convention	1
Computer networks	1
Data processing	1
Disaster recovery	3
Ecology	1
Economy	1
Finances	3
Gas processing plants	1
General	6
Information security and data protection	1
Information technology	6
International Monetary Fund	1
Management	1
Mass media	1
Medical	1
Meteorology	1
Microsoft	1
Military	4
Occupational health & safety	5
Oil and gas	3
Power system protection	1
Programming	25
Quality control and standards	2
Sakhalin	4
Security systems	7
Software	9
Technology	3
Weapons of mass destruction	1