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double unit stresses
mining.	спаренные забои; спаренные лавы; сдвоенные забои

double unit : 85 phrases in 30 subjects

Astronautics	1
Automated equipment	10
Business	1
Coal	1
Combustion gas turbines	10
Construction	2
Electrical engineering	1
Electronics	5
Forestry	1
General	2
Hydraulic engineering	1
Information technology	2
Makarov	2
Medical appliances	1
Military	2
Mining	2
Nautical	4
Oil / petroleum	5
Oil and gas	1
Oil and gas technology	1
Oilfields	2
Production	1
Refrigeration	4
Roll stock	1
Silicate industry	1
Technology	12
Telecommunications	2
Transport	4
Windows	1
Wood processing	2