The first is a numerical policy rule, such as a target for the debt ratio or, as in Chile, a pledge to run a budget surplus of 1% of GDP over the business cycle.

首先，要有一个量化的政策体系，例如债务目标比率，或像智利一样，在经济周期中把预算盈余设定为占gdp的1%。

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With the traffic situation changed, the method makes the phase order, the ratio of green signal and the cycle adaptively change.

本方法实现了相位顺序、绿信比、周期均随着交通条件的变化而自适应变化。

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This logarithmic decay ratio of the shaft set is in direct proportion to the ratio of the energy dissipated per cycle to the peak strain energy.

轴系扭振的模态对数衰减率正比于每个振动周期耗散的能量与峰值应能的比值。

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The name alone is enough to raise eyebrows, but wait until you see the special features: a biorhythm calculator, a fatness function that calculates a user's height-to-weight ratio, a calendar for keeping track of your menstrual cycle and a calorie-counting function.

ECONOMIST: Mobile telephones

The ratio of unemployed to job vacancies is falling, but not by much more than is typical at this stage of the cycle.

FORBES: In the Long Run it's All Microeconomics