在1980年这个长牛建立的年份，据美联储资料，10年期国债的回报率是11.43%。
In 1980, the setup for the secular bull, a 10-year Treasury paid a yield of 11.43%, according to the Federal Reserve.
利用灰色系统理论和方法建立灾变预测模型，对中国重灾出现年份作出预测分析。
The forecast model is set up by using the grey-theory, and the particular years of severe calamities in China are forecasted and analysed.
本文运用POA算法的原理，建立了一个大型混联水库群考虑下游水位变化，适用于任何来水年份的变维线性模型。
A multiple reservoir is established with the POA algorithm theory. This reservoir can be applied to any variable dimension linear model of the water-coming year.
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