在自动或半自动枪械上阻缓向后移动的枪栓并将其推送回前端的弹簧。
前者先定义复进簧的设计变量，确定其结构参数。 再确定其目标函数、状态变量。
The former firstly defines the design variable of the multiple spring and ensures the parameter of structure, then ensures the object function and state variable.
本发明公开了一种武器的磁力闭锁机构，它包括：复进簧、机匣、后座阻铁、磁体、枪机和枪管。
The invention discloses a magnetic locking mechanism for weapon, comprising driving spring, casing, resistance iron for back seat, magnet, gun action and gun barrel.
作者建议在设计复进簧时，不仅运用传统的静载计算，还要进行动态应力分析，以便获得较合理的尺寸。
It is believed that in the design of the drive spring, it is necessary not only to use the usual static calculations but also to analyse the dynamic stress so as to obtain rational dimensions.
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