近20年来，CPU的速度呈指数式快速增长，而主内存的增长慢得多，大致是直线式的。

For about 20 years now, CPUs have increased exponentially in speed, while main memory has weakly linearly increased in speed.

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评价结果显示，经理层治理状况总体偏低，且行业间和各主、子因素指数间的得分有较大差异。

The appraisal result shows the overall condition is a little lower and there is big difference among industries and sub-index.

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用南方涛动指数(SOI)的第一主成分表示年涛动强度。

The first principal component of the Southern Oscillation Index (SOI) is used as the intensity of annual SO.

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