子弹轮转盘装有弹药的左轮手枪的旋转弹膛 The rotating chamber of a revolver that holds the cartridges.
弹盒某些武器上的一个部件，通常是一个可以拆御的小盒，子弹在压入弹膛之前就放在那里 A compartment in some types of firearms, often a small detachable box, in which cartridges are held to be fed into the firing chamber.
