English ⇄ Russian

unknown unknowns stresses
gen.	Неизвестное неизвестное (things we don’t know we don’t know – goo.gl Artjaazz); неизвестные неизвестные (противопоставляются "известным неизвестным" (known unknowns) – тем вещам, про которые мы знаем, что мы их не знаем A.Rezvov)

unknown unknowns: 467 phrases in 76 subjects

Automated equipment	2
Aviation	11
Biology	1
Bookish / literary	1
Business	1
Cardiology	2
Cartography	2
Chemical industry	1
Chemistry	9
Chromatography	6
Combustion gas turbines	1
Computer networks	4
Computers	1
Construction	3
Cryptography	2
Dialectal	1
Drug-related slang	1
Economy	1
Electronics	8
Equestrian sports	1
Esoterics	1
European Union	1
Figurative	2
Figure of speech	1
Firefighting and fire-control systems	1
Food service and catering	1
General	122
Geology	1
Geophysics	1
Historical	1
Idiomatic	4
Informal	1
Information security and data protection	1
Information technology	23
Internet	1
Law	6
Librarianship	5
Linguistics	4
Makarov	36
Mass media	2
Mathematics	31
Mechanics	3
Medical	31
Meteorology	5
Metrology	3
Microsoft	7
Military	10
Molecular genetics	1
Music	1
Nanotechnology	1
Obsolete / dated	2
Oil / petroleum	2
Oncology	10
Operation systems	1
Ornithology	1
Patents	1
Pharmacology	2
Physics	3
Poetic	2
Production	3
Programming	22
Proverb	4
Psychology	5
Quality control and standards	2
Quotes and aphorisms	5
Rhetoric	8
Robotics	1
Sakhalin	1
Scientific	2
Security systems	2
Slang	2
Software	1
Statistics	1
Technology	12
Telecommunications	3
Travel	2