Therefore, various modern periodical data should be explored, collected and properly used so as to deepen the study and achieve plentiful and successful outcomes.

我们应大力发掘、广为搜罗和准确运用各种报刊史料，以期将近现代史各个领域的研究深化一大步，取得更为丰硕的研究成果。

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The Chinese periodical web has the character of vast data, high speed, comprehensive and authority.

中国期刊网具有数据量大、更新速度快、权威性高、综合性强等特点。

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Further more, in view of periodical character of dam observation data, a frequency spectrum analysis method for data treatment is suggested.

针对大坝观测资料周期性较强的特点，首次提出了频谱回归及分析法。

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Emotion UI is also pre-installed with a smartphone housekeeper function to support real-time data traffic tracking, automatic blacklisting and blocking, periodical system cleaning, and spontaneous exiting of idle programs and cache cleanup, in addition to anti-virus, energy saving, privacy protection, software management, and more.

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