本文着重介绍了回归分析方法，并利用回归分析法对我国铁路通信网电话机的数量做了统计分析和预测。
The paper emphasizes the regressive analysis method, by which statistical analysis and forecast of the number of telephones in Chinese railway communication network are made.
本文着重介绍了回归分析方法，并利用回归分析法对我国铁路通信网电话机的数量做了统计分析和预测。
The paper emphasizes the regressive analysis method, by which statistical analysis and forecast of the number of telephones in Chinese railway communication network are made.
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