stream system

: 22 phrases in 16 subjects

Automated equipment	1
Electronics	1
Hydrology	1
Information security and data protection	2
Information technology	1
Makarov	1
Mechanics	2
Metallurgy	1
Mineral processing	1
Navigation	1
Oil and gas	1
Programming	2
Technology	4
Transport	1
Water resources	1
Weapons of mass destruction	1