下层地层 – English translation

下层地层: 181 phrases in 22 subjects

Agriculture	6
Architecture	3
Bridge construction	4
Business	1
Construction	2
Desert science	9
Drilling	1
Earth sciences	3
Ecology	5
Economy	1
Electronics	3
Engineering geology	17
General	4
Geophysics	2
Hydroelectric power stations	10
Mining	1
Oil / petroleum	11
Oil and gas	1
Refrigeration	1
Technology	90
United Nations	1
Water resources	5