More recently, a revision of the U.S. copyright Act in 1976 extended copyright protection to unpublished works and codified what constitutes "fair use."

更近一点，1976年美国对Copyright Act的修订，将版权扩展到保护未出版的作品，并编写了“正当使用”的条款。

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Concerning about the institutional design of TM under interest balance, the copyright abuse doctrine can uphold the user right to non-infringement use such as fair use and expression freedom.

在利益平衡下技术措施保护的制度设计上，版权滥用原则的运用将有助于保障使用者的诸如合理使用、表达自由等非侵权性使用。

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So does Dr. Fang have the right to use my work under fair use clauses of US and international copyright law?

那么，依据美国与国际版权法的合理使用原则，方博士有没有权利那样使用我的作品？

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Publishing and libraries normally governed by copyright and fair-use doctrine would be specifically affected.

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The Fair Use Doctrine, copied and pasted below from the US Copyright Office stipulates that it is legal and permissible to use copyrighted material under the fair use doctrine for purposes of parody.

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Those in the creative industries who dubbed Professor Hargreaves' mission "the Google review" feared that our copyright regime would be torn up and replaced with a fair use law.

BBC: Hargreaves Review: Who has won the copyright wars?