To separate cyclical trends from annual series data of GDP is not only a statistical technical problem but also related to methods to research economic operation laws.

将GDP年度序列数据中的周期趋势分离出来，不仅是一个统计技术问题，更是一个研究经济运行规律的方法问题。

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Temperature rise mainly appeared after 1970s. Accoding to the temperature statistical data of 56 meteorological stations in Xinjiang, the annual mean air temperature increase steadily.

根据新疆56个气象观测台站的气温资料统计，年均温呈稳定的上升趋势。

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The major data sources of this book are annual statistical report of statisticssystem, a few from statistics data of Binhai New Area's departments and relatedmunicipal departments.

年鉴中的主要统计数据来源于统计系统的统计年报、少部分来源于滨海新区有关部门及市相关部门的统计资料。

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