以河北矾山磷矿产品历史销量为时间序列，利用灰色预测理论，构建其主要产品市场需求预测模型，并对企业2004年主要产品销量进行预测。
A market demand estimation model of enterprise product is set by applying Gray theories. The estimation of sales volume of main products in 2004 of Fanshan Phosphate Mine is made by using the model.
以河北矾山磷矿产品历史销量为时间序列，利用灰色预测理论，构建其主要产品市场需求预测模型，并对企业2004年主要产品销量进行预测。
A market demand estimation model of enterprise product is set by applying Gray theories. The estimation of sales volume of main products in 2004 of Fanshan Phosphate Mine is made by using the model.
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