足迹是人体站立或行走条件下，脚掌面通过力的传递作用在承痕体上形成的痕迹。
Footprint is a kind of trace information which is left on the ground by the sole surface when the human body stands or walks.
而任何一种痕迹的发生和存在都不是孤立的，而是与周围的诸事物、诸条件相互联系、相互作用、相互制约着的，是纵横交错的联系网络中的一个结点。
Occurrence and existence of every trace is not isolated but interknitted and interactional with other things and conditions around and is in a relation network point, which spreads across.
结论通过了解羊角锤的结构特点和功能，综合分析撬压时形成痕迹的作用关系，按照现场环境条件制作样本，可以进行同一认定。
Results striation marks are unique to the particular claw-hammer which made the mark. Conclusion claw-hammer striation marks can be used for claw-hammer identification.
结论通过了解羊角锤的结构特点和功能，综合分析撬压时形成痕迹的作用关系，按照现场环境条件制作样本，可以进行同一认定。
Results striation marks are unique to the particular claw-hammer which made the mark. Conclusion claw-hammer striation marks can be used for claw-hammer identification.
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