79式微型冲锋枪击针痕迹稳定性及价值研究

Study on Stability and Value of Strike Trace of 79-Type Micro Submachine Guns

研究79式微型冲锋枪击针痕迹的三个方面的相似性,分别是击针痕迹的底部痕迹特征、痕侧壁痕迹特征与外缘凸轮及外边缘痕迹状态。通过数据整理、统计研究,总结出击针痕迹中内部各痕迹细节特征及比重,得出鉴定中可使用特征的稳定性和检验价值。

The similarities of the three aspects of the 79 - type micro submachine gun needle traces are studied, which are the bottom trace characteristics of the needle traces, traces of the sidewall traces, and the status of the outer edge cams and outer edge traces. Through data compilation and statistical research, the detailed features and proportions of the internal traces in the needle traces were summarized, and the stability and test value of the usable features in the identification were obtained.