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产品销量预测月份产品销量指数平滑预测标准误差131730.00233370.0031730.00330340.1533370.00435020.0030340.15535220.0035020.003355.124789632920.0035220.003220.817031731809.7532920.003012.805781834000.0031809.751479.037419937010.0034000.001942.4941121039920.0037010.002242.7624431147010.0039920.002727.9659741243320.0047010.004753.8160111347066.5043320.004910.9503491446792.6547066.505096.4190781539017.5046792.653040.1401321642850.0039017.504985.4526241748000.0042850.005007.195076