loudhailer

常见例句

Guangzhou Chuanteng Electronic Technology Co. , Ltd is a new enterprise specialized in designing, researching, producing, and selling high-quality vibration loudhailer.
广州市川腾电子科技有限公司是一家致力于设计、研发、生产、销售高品质振动扬声器的新型企业。
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."
「这就像进化的扬声器，扬声器引导声音的方向而非泛传给所有对象。」莱佛德非致命武器计划的尼尔大卫森说。