But in 1990 several rate cuts failed to stop the American economy from sliding into recession.

但是在1990年，多次降息没能阻止美国经济陷入衰退。

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Due to high speed, high viscosity pump inside the rotor is barely formed when running idle, surrounding medium by sliding, cause not feeding, or flow rate is small.

由于转速过高，使高粘度泵在运转时内部转子几乎只是形成了空转，围绕所输送介质打滑，造成吸不上料，或者是流量很小。

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The wear rate initially increases and then decreases with sliding distance increasing in all tested materials, wear mechanism during dry sliding process is oxidation wear and adhesive wear.

干滑动摩擦磨损率随磨损滑移距离的增加先增加而后逐渐降低，磨损机制主要为粘着磨损和氧化磨损。

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But is this the time to take billions of dollars out of the economy, eliminate government jobs when the unemployment rate is sliding?

FORBES: More At Stake Than Fiscal Cliff

But the rate has been sliding steadily downwards: it is expected to fall below 10% this year, and perhaps to 8.4% by 2001.

ECONOMIST: Something odd in France

The agencies assess their the ability to pay off loans or investments and then rate them on a sliding scale, ranging from AAA to D.

CNN: Explainer: The power of credit rating agencies