image method

: 44 phrases in 17 subjects

Architecture	1
Aviation	1
Chemistry	2
Earth sciences	2
Ecology	1
Electronics	2
Engineering geology	3
Geophysics	1
Hydroelectric power stations	2
Information technology	1
Metallurgy	1
Oil / petroleum	1
Physics	1
Space	2
Technology	20
Textile industry	1
Wind Energy	2