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地面层
consult.	lithosphere
desert.	surface layer
econ.	the ground floor
tech.	ground floor
地面圬工层
tech.	ground course

地面层: 259 phrases in 23 subjects

Architecture	9
Aviation	1
Bridge construction	4
Desert science	7
Drilling	4
Earth sciences	10
Ecology	2
Electronics	1
Engineering geology	10
General	2
Geology	1
Geophysics	7
Hydroelectric power stations	3
Metallurgy	1
Mining	3
Nautical	2
Oil / petroleum	19
Plastics	1
Rail transport	5
Soil science	2
Space	4
Technology	158
Wind Energy	3