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замыкание и размыкание stresses
el.	open and close (контактов переключателя ssn)
energ.ind.	make-break (напр., контактов реле)
IT	make-and-brake

замыкание и размыкание: 24 phrases in 12 subjects

Astronautics	1
Automated equipment	2
Electrical engineering	1
Electronics	6
Energy industry	1
Information technology	3
Mass media	1
Mechanic engineering	1
Military	1
Rail transport	1
Technology	5
Telecommunications	1