大部分的时间，声音清晰，信号强。

Most of the time voices are clear and the signal is strong.

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认为地震映像因干扰信号强、不能定量解释等缺点，建议不单独使用；

It is considered that the seismic mapping means shall not be used alone due to its disadvantages of strong disturbance signals and non-quantitative interpretation.

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内置功率放大电路，可以单独成为一个小系统，并受主信号强切优先控制。

Built-in power amplifier circuits that can be a small system, and strong signal by cutting the main priority control.

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