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该文介绍了一个利用公用电话网对炼油厂罐区质量流量计实现数据采集的实例.描述了该系统的硬件组成和软件设计方法.“,”This paper introduces an example of data acquisiting from mass meters in tankfarms in refinery with public telephone－ net. The system\'\'s hardware and software are descriped in this paper.