Standard specification for copper alloy bullet jacket cups 铜合金弹头火帽壳标准规范
2.
It ' s an old cap - and - ball . that ' s a old - school gun right there 这是火帽炮弹式的老式手枪
3.
A device , such as a fuse or percussion cap , used to set off an explosive charge 引爆器用来引爆炸药的装置，例如引线或火帽等
4.
Sporting paper caps 体育用纸火帽
5.
In light of the above , the real electrostatic sensitivities of 105 electric primers are tested and the confidence interval of its minimum electrostatic ignition energy is determined 测试了105电火帽的真实静电感度,确定了其静电最小点火能量的置信区间。
6.
The results proved that : ( 1 ) because of the material ' s difference of primer - 9 and primer - 5 , the maximum stress of primer - 5 is larger than primer - 9 but the maximum displacement is smaller than primer - 9 . ( 2 ) because of the unrenewable shape changing of primer - 9 after impacting by the pin , it will cracking under high pressure more easily . so , the paper give the suggestion that the designer should decrease the depth of impacting by pin in the case of the primer be fired successfully 对底- 9底火、底部被击针撞击后的第- 9底火和底- 5底火在膛压作用下分别进行了有限元数值分析，计算表明： ( 1 )底- 5底火底部击针撞击部位为火帽座，其材料为钢带，底- 9底部承受撞击部位为底火体，其材料为冷拉退火圆钢，由于材料强度不同，承受压力能力和变形能力不同：虽然在膛压作用过程中底- 5底火的最大应力值比底- 9底火的大，但底- 5底火的最大位移量却比底- 9底火的小得多。
