With an increasing trend that customers long for their customized needs to be fulfilled under short customer leadtime, it will be necessary for the manufacturers to forecast the individual demand.
随着顾客个性化需求所要求的交货期变得越来越短，制造商有必要对个性化需求进行预测。
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By using the life time of a certain scale echo to restrict the leadtime, a forecast can be made for the rainfall at this scale, and total rainfall is obtained through composing.