An optimal interest equilibrium among providers, producers and users of information should be seeked out in copyright protection of on line information.
网络版权保护应在信息生产者、信息使用者和信息提供者之间寻求最佳的利益平衡。
With the tools of production possibility curve and budget line, the paper analyzes the necessary factors of the producer equilibrium state realized by rural household.
以生产可能性曲线与收入预算线为工具,分析农户达到生产者均衡状态的必要条件。
The characteristic line method meets the static equilibrium equations and yield conditions, which gives the lower limit of the solutions.
本方法满足静力平衡方程和屈服条件,属于极限分析理论的下限解。
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