并选取几个典型特征来分析其可能原因。
Then several typical characteristics choose to analyze its possible reason.
在哈希算法中，图像特征的选取是其中关键的一步。
The selection of the image character is the key procedure in the harce algorism.
在哈希算法中，图像特征的选取是其中关键的一步。
The selection of the image character is the key procedure in the harce algorism.
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