该系统以声级计和微机为核心，装上由信号调理和模数转换两部分组成的数据采集卡，完成对风机噪声的测量。

Its core is a microcomputer in which a data acquisition card is installed. The system can perform noise measurement by using hardware resources of computer.

youdao

该系统以声级计和微机为核心，装上由信号调理和模数转换两部分组成的数据采集卡，完成对风机噪声的测量。

Its core is a microcomputer in which a data acquisition card is installed. The system can perform noise measurement by using hardware resources of computer.

youdao