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indication signal stresses
telecom.	индикаторный сигнал (oleg.vigodsky)

indication signal : 53 phrases in 15 subjects

Astronautics	2
Computer networks	2
Electronics	2
Geophysics	1
Information technology	4
Military	2
Non-destructive testing	3
Physics	1
Radioengineering	3
Rail transport	9
Security systems	1
Space	1
Technology	11
Telecommunications	10
Telephony	1