The net effect is that a lot of book sales occured in the long tail.
由此得出的实际结果表明图书的大量销售往往存在长尾效应。
2
And there was a Greek story to the effect that the sentinels at the siege of Troy changed their guard according to the vertical or horizontal positions of the tail of the Great Bear.
从前有个希腊故事，大意是说，哨兵们包围特洛伊城后，根据大熊星星尾的垂直或水平位置改变其守卫战略。
3
To effect that transformation, you need to use a common XSLT technique known as tail recursion.