Based on exposure time by year and life table, the cumulative pneumoconiosis incidence of 30 year length of service was calculated.

以不同开始接尘年度工龄分布表为基础，用寿命表法计算30年工龄累计尘肺发病率。

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While the currency portion of the two bets has worked extraordinarily well for U.S. investors since 2002, it may be time to reduce exposure or take that bet off the table altogether.

FORBES: Currency's Impact On Your Portfolio: Five Things You Need To Know Now