a-type frame aubepin audibility current audibility zone audibility zoness audible audible busy signal audible call audible frequency audible indication audible inspection audibleness audible region audible signal audible signalling device audible sound audible spectra audible spectrum audible test audible tone |
a-type frame А-образна опора А-образна рама, А-образен стълб Търсената дума е намерена |