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au sol stresses
gen.	на земле
avia.	у земли
construct.	напольный

au sol: 754 phrases in 47 subjects

Agriculture	5
Armored vehicles	6
Astronautics	25
Athletics	3
Automobiles	3
Aviation	282
Business	3
Chemistry	2
Climatology	1
Construction	36
Electronics	2
Food industry	2
Football	2
Forestry	19
Foundation engineering	1
General	10
Geology	7
Gymnastics	10
Helicopters	1
Hydraulic engineering	1
Journalism terminology	3
Law	2
Measuring instruments	3
Medical appliances	2
Metallurgy	7
Meteorology	25
Military	98
Military aviation	3
Mining	3
Missiles	1
Natural resourses and wildlife conservation	61
Nuclear physics	14
Oil / petroleum	1
Paragliding	2
Police	1
Politics	7
Production	1
Radio	3
Radiolocation	2
Remote sensing	1
Road traffic	1
Sports	2
Surveying	13
Technology	40
Trucks/Lorries	18
United Nations	3
Радиография	16