Google has been using that since 2002 when it started digitizing libraries for Google Books.

自 2002 年开始为谷歌图书（Google Books）数字化图书馆以来，谷歌一直在使用这种技术。

The engineers who first worked on this project had actually been working on the Google Books search project.

最初参与该项目的工程师一直在从事谷歌图书搜索项目。

It looks at the words from Google books to show how often people use words over time and in what places.

它会研究谷歌图书中的文字，以显示人们在一段时间内使用单词的频率以及在什么地方使用的这些单词。

The judge in New York ruled that the Google Books scheme provided significant public benefits while taking into account authors' rights.

纽约法官判定谷歌图书项目提供了巨大的公共利益，同时也考虑了作者们的权利。

The web page can be found by googling the words Google book search.

该网页可以通过谷歌搜索单词来找到谷歌图书搜索。

Google Ngrams is an app that shows general changes in English usage by searching all the words in Google's digital books.

Google Ngrams 是一款应用程序，它通过搜索 Google 数字图书中的所有单词来显示英语用法的一般变化。

So, if you're interested in this project - it is an interesting one - you can go to Google book search and find more information.

所以，如果您对这个项目感兴趣——这是一个有趣的项目——您可以去 Google 图书搜索并找到更多信息。