关键词 : 空分设备 ; 有效产品成本 ; 气体有效利用率 [gap=776]Keywords : Air separation device ; Effective product cost ; Effective using rate of gas
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产品盈利能力分析是产品组合决策的基础，而有效的盈利分析有赖于产品成本的准确性和完整性。
Analysis of product profitability is a foundation of product mix decision. A valid analysis is dependent on the accuracy and integrity of cost information.
在企业实行责任成本制进而实现成本分级递阶控制是遏制产品成本飙升的有效方法。
On the premise of carrying out responsible cost, it is an effective method for a business to bring about cost control of hierarchal multilevel to restrain the rapid of product cost.
该结构及工艺的应用是该采矿方法降低产品成本的有效方法。
Their application of the structure and the process in the method of mining is the effective method to increase the economic benefits.
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