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эхо-компенсация stresses
comp.	echo killing
comp., net.	echo cancellation
tech.	echo elimination; echo suppression
telecom.	echo cancelation (oleg.vigodsky); echo canceling (oleg.vigodsky); echo cancelling (oleg.vigodsky); echo compensation (oleg.vigodsky); echo control (oleg.vigodsky)

эхо-компенсация: 8 phrases in 3 subjects

Radio	1
Technology	1
Telecommunications	6