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уровень поверхности stresses
avia.	Oberflächenniveau n
geol.	Spiegel m
missil.	Oberflächenniveau n (планеты)

уровень поверхности: 74 phrases in 23 subjects

Aerodynamics	2
Astronomy	1
Aviation	3
Chemistry	1
Construction	5
Electronics	1
Energy industry	2
General	2
Geography	1
Geology	8
Geophysics	1
Hydraulics	2
Hydrology	7
Medical	1
Metrology	2
Mining	3
Navy	1
Nuclear physics	7
Oceanography & oceanology	7
Pumps	2
Rail transport	1
Technology	2
Water supply	12