大作文：一级预测(Highly Possible): 青少年教育类入选理由：作为历年最常考话题，2008年第一季度只考了一次。教育类话题有望在第二季度来个总爆发。
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通过对昆明市2003-2010年生活垃圾产生量进行了灰色组合模型预测，结果表明该模型的预测精度达到一级。
The result showed that the Gray Combining Predication Model's accuracy can reach first class in forecasting of Kunming urban waste output in 2003-2010.
基于一级倒立摆系统线性模型的不确定性，建立了灰色预测模型。
Based on the uncertainty of linear model for single - inversed pendulum, a gray prediction model is built up.
大量工程实践验证表明，无论是一级荷载还是多级荷载下的指数曲线模型，均可对地基沉降进行较好地预测，但也存在不足之处。
Lots of engineering examples show that the exponential curve models, for either single-stage loading or multi-stage loadings, can well predict foundation settlement, but they have shortcomings.
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