America's Federal Reserve indicated it would be keeping interest rates at "close to zero" for the foreseeable future, despite declaring its optimism that the country's economy was slowly recovering.

美联储表示，在可预见的未来，它将把利率继续维持在接近于0的的水平，尽管美联储对于美国经济的缓慢回升表示出乐观情绪。

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The results indicated that the new threshold function could better reserve the characteristics of heart sounds, eliminate noise effectively, and was of strong practical value.

结果表明，新阈值函数能有效地消除噪声和保留心音信号的特征，具有较强的实用价值。

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On Wednesday the Federal Reserve indicated it will take further steps as necessary to promote a stronger economic recovery.

FORBES: Bernanke is Bluffing

Federal Reserve Chairman Ben Bernanke indicated as much this week.

NPR: State of the Economy Check In

The strength of U.S. growth is in sharp focus after Federal Reserve Chairman Ben Bernanke indicated that the central bank could pare back its stimulus efforts should the economy continue to show signs of improvement.

WSJ: U.S. Stocks Rally