Trading volume series is stable than price series, and can be estimated easily.

交易量序列比价格序列更加稳定，具有更高的可预测性。

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First, Descriptive statistics is used to analyze the return and trading volume series.

首先对收益率和交易量序列进行描述性的统计分析。

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"The flying scenes are incredible," she says, referring to Hiccup's soaring rides atop Toothless, which would be physically impossible with the mini-Toothless in her eight-volume series.

“飞翔的场景让人难以置信，”她提到Hic cup骑在“无牙”身上咆哮飞过的场面时说道。这样的设定在她的8卷系列小说里是不可能实现的，因为“无牙”的身型非常小。

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Barth wrote a famous essay just the year before these stories came out all in one volume. They had been written over a series of years, got a lot of exposure--called "The Literature of Exhaustion."

在写完这一卷故事的前一年,巴斯写了一篇著名的论文，在60年代，叫《枯竭的文学》

耶鲁公开课 - 1945年后的美国小说课程节选

Paolini was only eighteen when the first volume of his Eragon series, the tale of the dragon rider Eragon, was privately published, in 2001.

NEWYORKER: The Dragon��s Egg

He starts every quest for a new acquisition by consulting the collector's bible, the nine-volume U.S. Civil Aircraft Series.

FORBES: Barnstormer

The new series, Secret Millionaires Club Volume One, debuted on DVD March 19.

FORBES: Warren Buffett On Teaching Kids Smart Investing, With Cartoons