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English thesaurus
Critical Hours
USA	CH

Critical: 273 phrases in 38 subjects

Aerodynamics	7
Airports and air traffic control	1
American usage, not spelling	1
Archiving	1
Astronautics	5
Audit	1
Aviation	18
Chemistry	13
Communications	1
Computers	2
Construction	3
Diplomacy	13
Earth sciences	1
Ecology	5
Economy	8
Electronics	4
Finances	1
General	22
Health care	1
Information security and data protection	1
Information technology	11
Law	6
Logistics	3
Management	1
Mathematics	2
Medical	2
Metallurgy	16
Metrology	1
Microelectronics	11
Microsoft	8
Military	73
Nautical	2
Oil and gas	14
Philosophy	1
Physics	1
Road construction	1
Technology	9
Transport	2