model prototype

: 30 phrases in 15 subjects

Automobiles	2
Aviation	2
Bridge construction	1
Business	3
Ecology	1
Electronics	1
Engineering geology	1
Explosives and Explosive Ordnance Disposal	1
General	1
Geotechnics	1
Hydroelectric power stations	1
Information technology	2
Space	5
Technology	7
Telecommunications	1