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The paper mainly deals with the analysis and design of coal sales management system of YuanBaoShan open pit coal mine.
本文主要对元宝山露天煤矿煤炭销售管理系统进行了分析及设计。
youdao
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The paper mainly deals with the analysis and design of coal sales management system of YuanBaoShan open pit coal mine.
本文主要对元宝山露天煤矿煤炭销售管理系统进行了分析及设计。
youdao