In addition, the first integrated circuit die, the at least one additional die integrated circuits, and the array of acoustic elements together form a large aperture transducer array.

此外，该第一集成电路管芯、该至少一个附加的集成电路管芯以及该声学元件阵列一起形成大孔径换能器阵列。

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There are a lot of research on the acoustic characteristics of the acoustic emission transducer and its array for the emission energy is concentrated in some specific direction.

在水声方面，为了得到用较小的发射功率探测到更远得距离的目标，使发射能量集中在某些特定方向，人们对水声发射换能器及其基阵的声特性进行了很多研究。

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