Probabilistic Neural Networks (PNN) is improved and used on line to estimate the states of singular perturbed systems, especially to the fast states of the systems.

将改进的概率神经网络(PNN)用于奇异摄动系统的实时状态估计，注重针对系统快变部分的滤波。

youdao

Even in the United States—the fast-food nation—small farms and urban gardens are on the rise.

即使在快餐之国美国，小农场和城市菜园也越来越多。

youdao

It was during the ages of the iron horse that delivery really starts to become fast. The United States translated most folk mails by train by nearly 100 years.

在那个时代，铁马才真正地提高了速度。在美国，主要使用铁路运送邮件有将近一百年了。

youdao

Minority children, especially Hispanics, are increasing at a fast rate while the United States has fewer white children.

VOA: special.2010.03.20

But such fast trains would take a long time to put in place in the United States.

VOA: special.2011.02.11

The question of just how fast states and other agencies can spend money to do things like fix roads and retrofit buildings to make them more energy efficient will remain central to the congressional debate in coming days.

CNN: Obama tells GOP no compromise on tax rebates

The company builds entry-level and semi-custom luxury houses in the fast-growing states of Texas, Arizona and California.

FORBES: Magazine Article

The housing bust and the recession have slowed migration to fast-growing states in the Sun Belt and the West.

WSJ: Recession Slows Migration in U.S.