1) scrape of breech
弹底窝擦划痕迹
2) breech mark
弹底窝痕迹
1.
54 type pistols fired cartridge case s breech marks have high rate of appearing, cover large space and the stability of marks characteristics is strong, which is the important characteristics of trace in distinguishing the guns kinds and identifying them.
弹底窝痕迹,是弹壳底面在火药气体作用与枪机弹底窝平面紧密贴合而形成的印压痕迹。
3) pressing and scraping prints on the edge of cartridge case bottom
弹底边缘压擦痕
1.
We found that dot-imprints on cartridge case shoulder,pressing and scraping prints on the edge of cartridge case bottom and marks on the hook of cartridge-case-extractor are all related to the shooting .
结果壳体肩部圆点痕,弹底边缘压擦痕、拉壳钩痕与发射顺序有关。
5) abrasion mark
擦伤痕迹
6) mark's change on the base of cartridge cas
弹壳底部痕迹变化
补充资料：弹窝
1.见"弹子窝"。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条