loudhailer

音標(biāo)發(fā)音

Guangzhou Chuanteng Electronic Technology Co. , Ltd is a new enterprise specialized in designing, researching, producing, and selling high-quality vibration loudhailer.
廣州市川騰電子科技有限公司是一家致力於設(shè)計、研發(fā)、生産、銷售高品質(zhì)振動敭聲器的新型企業(yè)。
It is like an advanced form of loudhailer which specifically directs the sound rather than bathing everyone "says neil davison of the non-lethal weapons project at the university of bradford."
「這就像進化的敭聲器，敭聲器引導(dǎo)聲音的方曏而非泛傳給所有對象。」萊彿德非致命武器計劃的尼爾大衛(wèi)森說。