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mains system stresses
construct.	сеть
tech.	магистральная сеть
main system
tech.	главная система
telecom.	основная система
main systems
O&G, sakh.	главные системы

mains system: 169 phrases in 32 subjects

Apollo-Soyuz	1
Astronautics	6
Automated equipment	1
Automobiles	3
Aviation	4
Construction	5
Drives	4
Electrical engineering	2
Electronics	1
Energy industry	33
General	2
Information security and data protection	2
Information technology	2
International transportation	1
Makarov	3
Mechanic engineering	1
Military	7
Mining	2
Molikpaq	17
Nautical	16
Oil / petroleum	2
Oil and gas	2
Oil and gas technology	3
Programming	10
Rail transport	1
Sakhalin	6
Sakhalin R	1
Security systems	1
Shipbuilding	1
Technology	24
Thermal engineering	4
Water resources	1