任何想要在美国获得出版物版权保护的人必须向图书馆提交两份副本。
Anyone who wants copyright protection for a publication in the US must send two copies to the library.
从现有的大量电子文本网站来看，除非版权法的修订提案将许多出版物排除在公共领域之外，否则这个虚拟图书馆似乎将继续存在。
From the profusion of electronic-text sites available, it looks as if this virtual library is here to stay unless a proposed revision to copyright law takes many publications out of the public domain.
大英图书馆希望进一步扩展数字化图书的范围到20世纪早期的版权已经失效的图书。
The library hopes to extend the digitisation scheme by scanning books out of copyright dating from the early 20th century.
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