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engine run stresses
avia.	гонка двигателя (Selena)
oil	работа двигателя
space	опробование двигателя; этап испытаний двигателя

engine run : 80 phrases in 20 subjects

Airports and air traffic control	1
Armored vehicles	2
Astronautics	2
Automated equipment	1
Automobiles	6
Aviation	14
Fighter aviation	1
General	6
Informal	2
Makarov	4
Military	3
Mining	1
Non-destructive testing	4
Oil and gas	1
Oilfields	1
Programming	2
Space	19
Sports	1
Technology	6
Transport	3