叙述扩声系统用的扬声器组阵。

In this paper, the loudspeaker array in the public address system is described.

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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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试想想起来了，它很少需要比一的几首歌曲来一个约一组扬声器结束了。

Come to think of it, it rarely takes more than a couple of songs to come to a conclusion about a set of speakers.

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