4月的消费价格指数平稳，相比3月只有0.1%的下降，这意味着到4月为止，过去的12个月的价格跌了0.7%，5月15日劳动部称。
The flat Consumer Price Index (CPI) in April, which followed a 0.1% decline in March, means prices fell 0.7% the past 12 months as of April, the Labor Dept. said May 15.
如同广告上所打的那样，他的策略可能是提供比指数稍平稳的回报，但由于没有亏损月份，这能显示了他几乎完美的市场操作时机。
His strategy, as advertised, might have produced less volatile returns than the index, but the absence of negative months suggested almost perfect market timing.
本文以东风9内燃机车为例，分析了各种速度下的平稳性指数，并比较了线性模型和非线性模型的分析结果。
As an example, the riding index of diesel locomotive type DF 9 is calculated and the results of linear and nonlinear models of the locomotive are compared.
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