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level datum stresses
survey.	горизонт исходный
tech.	исходный горизонт

level datum : 103 phrases in 38 subjects

Accounting	1
Agrochemistry	1
Architecture	1
Automated equipment	1
Automobiles	1
Biotechnology	1
Business	1
Cartography	1
Computers	1
Construction	6
Drilling	1
Ecology	2
Economics	1
Electronics	2
General	3
Geology	8
Geophysics	2
Hydraulic engineering	1
Hydrology	2
Information technology	3
Makarov	8
Maritime law & Law of the Sea	1
Mathematics	1
Meteorology	2
Military	4
Mining	2
Nautical	5
Navigation	1
Oceanography & oceanology	5
Oil / petroleum	3
Oilfields	1
Rail transport	1
Road works	3
Seismology	2
Space	1
Surveying	3
Technology	18
Water resources	2