传统的教学扩声有什么弱点？
企业介绍往往要求扩声到一个大房间，通常有几个发言者对分散在整个礼堂。
Corporate presentations often require sound reinforcement to a large room, typically with several pairs of speakers scattered throughout the auditorium.
朗沃开发和制造用于电台、广播、制作和扩声等应用环境的数字调音台及所需软件。
Lawo develops and manufactures digital audio mixing consoles for radio, broadcast, production and live applications including the required software.
而采用的单元十分匹配，尤其是中高频段响应平滑，柔和动听，用于室内或户外广播扩声均可。
But adoption of the unit match very much, and particularly is an inside the high segment respond to smooth, soft and moving, used for the indoors or outdoor broadcast the voice to can be all.
本厂的声频功率放大器、播音控制桌椅、调音台、大型音响扩声工程等相关产品在国内久负盛名。
The main products are audio power amplifiers, broadcasting controlled tables, large sound amplifying engineering, which is well know for a long time.
可应于各种专业领域，如：固定安装、小型的厅堂扩声、流动演出及大型扩声系统的辅助补声等等。
May, in various professional fields, such as: fixed installation, a small hall sound reinforcement, mobile performance and large sound reinforcement systems supporting fills and so on.
同时分析了现场扩声中极易出现的交流声、啸叫声产生的原因，并介绍了有关应对的方法。参考文献7。
It also has analyzed the reason why hum and whistle cry are frequently produced and has introduced the method to deal with them. 7 refs.
LA系列采用高效H类电路，电源采用同步整流的开关电源，重量轻、体积小，特别适合流动演出扩声应用。
La Circuit Design class-H, power supply with synchronous rectification switching power supply, light weight, small size, especially suitable for mobile performance of anti-sound applications.
T12是一款全频多用途两分频，可以用于固定安装、厅堂扩声、流动演出以及大型扩声系统的辅助补声等等。
T12 is a full-range multi-purpose two-frequency, can be used for fixed installation, Hall PA, flowing performance, and supporting large-scale sound reinforcement system fills and so on.
文章从使用的角度介绍了图书馆报告厅主要扩声设备调音台、房间均衡器、功率放大器的工作原理和调控技巧。
This text has introduced the operation principle and the controlling skill of public address set in the report hall of the library.
迪安斯和罗滕伯格选择了紧凑型Melodie线阵列扬声器来满足精准覆盖角扩声需求，配置为5箱体一列，共4列紧吊装在顶棚。
Deans and Rothenberg selected the tight pattern control of M 'elodie line array loudspeakers to deliver the precise coverage needed, with four hangs of five boxes, flown tight to the ceiling.
实验结果表明用外部声激励的方法可以控制小展弦比扩压器内的复杂分离流动；
The study shows that complex flow separation in the diffuser can be effectively brought under control by external acoustic excitation.
实验结果表明用外部声激励的方法可以控制小展弦比扩压器内的复杂分离流动；
The study shows that complex flow separation in the diffuser can be effectively brought under control by external acoustic excitation.
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