当击发完成后，弹壳被抛出枪膛，枪机的退壳 (Extractor)、撞针 (Firing Pin) 和抛壳顶杆 (Ejector) 等部件都会在弹壳上留下独特的记号。所以弹壳就象人的指纹一样，可以有效地用来辩识发射枪枝的身份。
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Inertia firing pin 惯性撞针
floating firing pin 型号接纳浮动撞针
firing pin retaining pin 击针止动销 ; 击针固定销钉
spring-activated firing pin 弹簧推动式击针
firing-pin group 击发装置
Locks Firing Pin 门锁撞针
N the part of the firing mechanism of a firearm that ignites the charge by striking the primer (枪的)撞针
However, the related research is rarely reported on the humidifying property of the centrifugal nozzle with firing pin type, high pressure and little aperture.
但当前对该类型喷嘴加湿性能的相关研究还较少见诸报道。
The gist of the defense argument was that no one had actually been endangered by Dennis because, it turned out, the firing pin of his gun had been removed and the weapon couldn't be fired.
辩护的中心是实际上丹尼斯并没威胁到任何人，因为，原来那支枪上的撞针事先被卸掉了，所以那支枪根本不能用。
Combination of electrical fuse cabinet, pipe fused with a firing pin, in short, the firing pin impact tripping institutions, breaking fast, effective protection of electrical equipment.
熔断器组合电器柜，熔管带有撞针，在短路的情况下，撞针撞击跳闸机构，实现快速开断，能有效的保护电器设备。
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