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在煤炭工业部门中很多单位都购买了OKIFAX7700型传真机,为便于大家更好地了解其性能,使用好机器,本刊特作此介绍。
In the coal industry sector, many units have purchased OKIFAX7700-type fax machines, in order to facilitate a better understanding of its performance, the use of good machines, this publication specially for this introduction.