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коммутационное устройство stresses
gen.	switches (eternalduck)
Gruzovik	switchboard installation
auto.	commutator switch
auto.ctrl.	circuit changer (igisheva)
cables	switchgear assembly (распределительное)
comp.	coupler
el.	switchgear
electr.eng.	switching apparatus (Andrey Truhachev); patching arrangement
house.	switching device
IT	SW
nautic.	switch gear
railw.	locking drum
sec.sys.	switching unit
swtch.	electric switch (igisheva)
tech.	commutation switch; switching arrangement; switching system; switch; commutator
коммутационное MIDI-устройство
el.	MIDI switcher

коммутационное устройство: 45 phrases in 17 subjects

Astronautics	2
Automated equipment	4
Aviation	1
Cables and cable production	2
Computer networks	1
Computers	1
Electrical engineering	5
Electronics	6
Energy system	1
Information technology	4
Mass media	4
Metrology	1
Military	3
Nautical	1
Technology	5
Telecommunications	3
Transport	1