усилване означава в английски

amplification [amplifications]▼(in physics)
noun
[UK: ˌæm.plɪ.fɪˈk.eɪʃ.n̩] [US: ˌæm.plə.fəˈk.eɪʃ.n̩]

fortification [fortifications]▼(the act of fortifying)
noun
[UK: ˌfɔː.tɪ.fɪˈk.eɪʃ.n̩] [US: ˌfɔːr.tə.fəˈk.eɪʃ.n̩]

gain [gains]▼(factor by which signal is multiplied)
noun
[UK: ɡeɪn] [US: ˈɡeɪn]

strengthening▼(process by which something is strengthened)
noun
[UK: ˈstreŋ.θn̩ɪŋ] [US: ˈstreŋ.θn̩.ɪŋ]