piezo-electric loudspeaker 压电晶体扬声器
A plasma arc loudspeaker or plasma-dynamic loudspeaker is a loudspeaker that creates sound by varying air pressure through a corona discharge or electric arc.
等离子弧喇叭，又名等离子动态喇叭，是一种通过电晕放电或电弧改变空气压力发声的喇叭。
Wenzhou Zhongye Transportation electric Appliance Co., Ltd. is a high-technologic enterprise, which was established in 1997, especially in producing auto and motorcycle electrical loudspeaker.
温州中野交通电器有限公司创建于1997年，是专业生产汽车、摩托车电喇叭及电子喇叭的高新技术企业。
Loudspeaker is used to change electric waves into sound waves and to make radio messages and radio programmes sound louder so that many people can hear them at the same time.
用扩音器把电波变成声波并把无线电播放的消息和节目的声响变得高一些，许多人在同一时间都能听到。
应用推荐