loudhailers

They bellowed at us through loudhailers .

他们通过扩音器对着我们大声吼叫。

The colonel , using a loudhailer , tried to reassure the residents .

上校用手提扩音器传话，竭力要想让居民放心。

The designment of control module of attemper loudhailer system based on computer network

网上扬声调度系统管理控制部分的设计

Use a loudhailer to address the crowd .

用电子喇叭向人群讲话。

Power amplifier and loudhailer are used in sound field generating system to product stable sound field from voice-frequency signal generator .

声场产生系统中使用音频信号发生器，通过功率放大器，最后经大功率的扬声器发出纯音以形成稳定的声场。

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。

Voice Coil Motor ( VCM ) is a special type of linear electric machinery , which is similar to the voice coil of loudhailer in work principle .

音圈电机（voicecoilmotor，简称VCM）是特种直线电机，其工作原理与扬声器的音圈类似。

Compared with analog power amplifier , digital amplifier has many advantages , such as Hi-Fi , high efficiency , good match between amplifier and loudhailer , easy update , convenient debugging and so on .

数字功放产品相对模拟功放有很多的优点：高效率、保真度较好、功放和扬声器的匹配好、升级换代容易、生产调试方便等，且与未来的全数字式音频广播、高清晰度电视的发展趋势相匹配。

Out of frustration , the secretary of the Management Committee of Taizhou Binjiang Industrial Zone was helplessly forced to knell down on the dinning table to plead for mercy through a loudhailer .

无奈之下，参与吃饭的泰州市滨江工业园区管委会书记跪在酒桌上用话筒喊话，向群众求饶放人。