传统的多通道通信记录设备是由模拟磁带机或数字磁带机构成，设备庞大复杂，价格高昂。
Conventional multi channel speech communication recording systems consist of analog or digital tape recorder with large size and costs.
传统的多通道通信记录设备是由模拟磁带机或数字磁带机构成，设备庞大复杂，价格高昂。
Conventional multi channel speech communication recording systems consist of analog or digital tape recorder with large size and costs.
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