已过去的版权侵权案的法定时效是三年。
The statute of limitations for past copyright infringement is three years.
要重新界定图书馆合理使用的范畴，赋予图书馆必要的法定许可，完善版权集体管理制度。
Relimit the rational utilization scope for library. Bestow the essential legal permit on library. Perfect the system of collective control for copyright.
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