本文通过对世界二十五家线阵列扬声器系统产品分析，找出线阵列扬声器系统的特点与规律。
The article tries to reveal the common characteristics and rules of line array systems through the analysis of line array systems of twenty-five brands in the world.
本文简要介绍国家体育场扩声系统的组成、设计指标及线阵列扬声器在本次设计中的应用。
The paper briefly introduces the form of sound amplifying system of National Stadium, its design index and the ap- plication of line array loudspeakers in the project design.
最后，构建了一实验系统，该系统由信号源、功放阵列和扬声器阵列组成，并在实验室环境下完成了线阵列扬声器组的指向性实验和测试。
At last, we design an experimental system including signal source, power amplifier array and loudspeaker array. Some experiments of the directive property of loudspeaker array are completed.
最后，构建了一实验系统，该系统由信号源、功放阵列和扬声器阵列组成，并在实验室环境下完成了线阵列扬声器组的指向性实验和测试。
At last, we design an experimental system including signal source, power amplifier array and loudspeaker array. Some experiments of the directive property of loudspeaker array are completed.
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