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средний период stresses
invest.	average life

средний период: 64 phrases in 39 subjects

Accounting	2
Advertising	1
Aviation	1
Banking	1
Business	1
Commerce	1
Drilling	1
Economy	1
Electronics	2
Energy industry	1
Energy system	3
Finances	3
French	1
Genetics	1
Geochronology	1
Geology	1
Hydrology	5
Insurance	2
Investment	2
Makarov	1
Mammals	2
Mass media	4
Medical	3
Microsoft	1
Military	1
Nephrology	1
Nuclear physics	1
Oil / petroleum	3
Oil and gas	2
Pharmacology	1
Programming	2
Sakhalin	1
Sakhalin A	1
Stock Exchange	1
Technology	2
Wine growing	1
Winemaking	2
Wood processing	1
Радиоактивное излучение	2