有很多重要的里程碑，要实现的第一个月。
There are many important milestones that must be achieved in the first month.
密信信号隐藏算法关系到信息隐藏系统许多重要设计目标的实现。
Message embedding algorithm is the important factor for the performance of information hiding system.
密信信号隐藏算法关系到信息隐藏系统许多重要设计目标的实现。
Message embedding algorithm is the important factor for the performance of information hiding system.
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