经标准化处理后，在确定时变参数估值的基础上，建立了大修费用多层递阶预测模型，并成功地实现了大修费用预测。
The Multi?layer hierarchical recursion model for equipment overhaul cost forecasting is successfully established in overhaul cost prediction.
本方法能快速降解高 分子聚合物为低分子有机物，并能在一定程度降低污水COD值，其 操作简单，设备费用不高，在废水处理中有较大的经济效益和社会效 益。
The method can rapidly degrade polymers into small molecular organic matters, and can reduce COD content in some degree. Besides, the operation is easy, and the apparatus cost is not high.
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