提出了基于连续比例因子的梯度投影算法。

The gradient projection method based on continuous scale factor is presented.

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在美国，家庭储蓄率(没有用于消费的可支配收入的比例)自从1999年来一直低于2.5%；英国家庭储蓄率连续两年都低于3%。

In America, the household savings ratio (the proportion of disposable income not used for consumption) has been below 2.5% since 1999; in Britain, it has been below 3% in each of the past two years.

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疾病控制和预防中心最近发布的资料表明近三年来早产的比例连续在下降并在2009年下降到占总出生率的12.18%。

The Centers for Disease Control and Prevention released data recently showing that in 2009 the preterm birth rate declined, for the third year in a row, to 12.18 percent of all births.

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