It can improve minus deviation rolling rate greatly, assure the quality of product and increase the benefit, so it is used widely in steel rolling.
采用这种轧机可以大幅度提高负偏差轧制率，稳定产品质量，提高经济效益，因而被广泛用于轧钢生产中。
参考来源 - 预应力轧机预应力微机控制的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Article 3 When selling commodities, a retailer must use eligible instruments of measurement, and the allowed maximum error shall precede or be equal to the minus deviation of the commodities sold.
第三条零售商品经销者销售商品时，必须使用合格的计量器具，其最大允许误差应当优于或等于所销售商品的负偏差。
Note: Uncertainty in table is showed by the square minus of the standard deviation from laboratory average data and sample unhomogeneity.
注：表中不确定度以定值标准偏差和样品的不均匀方差表示。
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