detonator, bell signal, emergency signal, blast of the whistle, danger signal, acoustic
声号筒
acoustic horn【电讯】
暂无补充释义。
acoustic horn【电讯】
暂无补充释义。
detonator, bell signal, emergency signal, blast of the whistle, danger signal, acoustic
lens acoustic
acoustic
acoustic holography
acoustic memory
atresia of external acoustic meatus
acoustic spot
acoustic telegraph【通信】[专业]水中通信用\nsound telegraph【通信】