根据劳工统计局最近的家常数据，自去年12月以来，已经有近两百万美国人找到了工作。

And since December, nearly 2 million Americans have found jobs, according to the latest household data from the Bureau of Labor Statistics.

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本文对现行三种确定过滤常数的方法进行了方差分析和统计检验。

This paper makes analysis of variance and statistical test for three methods of determining the filtration constants.

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的作用，统计推断是估计的最佳参数值或常数的假设成本函数。

The role of statistical inference is to estimate the best parameter values or constants in an assumed cost function.

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