但油田使用的聚合物抗盐性能比较差，因此配制聚合物驱油溶液用水必须经过严格处理，这样增大了处理的综合费用。
However, because of the poor salt resistance of the polymer, the mixing water has to be treated, thus causing the increase of the total cost.
结合工程实例介绍了水泥浆液的配制，压浆设备及施工操作要点。在工业与民用建筑工程事故处理中，因其用工少、用料省，施工费用低，有广泛的应用价值。
Introduce the confecting of cement serosity mud-jack equipment and construction points according to engineering examples, the brood value owing to using fewer workers, less material and its low cost.
与之相反，现代成本管理能更为精确地分配制造费用，提供真实的成本信息，有利于企业做出正确的决策。
On the contrary, the modern cost management modes apportion the overhead more accurately and provide the true cost information. It is very helpful for the managers to make the right decisions.
与之相反，现代成本管理能更为精确地分配制造费用，提供真实的成本信息，有利于企业做出正确的决策。
On the contrary, the modern cost management modes apportion the overhead more accurately and provide the true cost information. It is very helpful for the managers to make the right decisions.
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