a rotation

: 170 phrases in 36 subjects

Agriculture	4
Armored vehicles	2
Astronomy	1
Automated equipment	3
Aviation	20
Chemistry	3
Construction	14
Dentistry	1
Electrical engineering	2
Electronics	3
Food industry	4
Forestry	1
General	2
Geophysics	5
Gymnastics	1
Hydraulic engineering	4
Logistics	1
Mathematics	1
Mechanic engineering	16
Medical appliances	4
Metallurgy	3
Military	8
Mining	14
Natural resourses and wildlife conservation	1
Nuclear physics	2
Oil and gas technology	5
Packaging	2
Physics	1
Radio	7
Soil science	1
Sports	2
Technology	16
Tennis	2
Textile industry	7
Trucks/Lorries	6
World war II	1