Couple charge and uncouple charge are the two forms of structure of bore charge,the latter often applies air-uncouple and water-uncouple forms.

• 炮孔装药结构分为耦合装药和不耦合装药,后者因不耦合介质不同由可分多种不耦合装药形式,较常用的是空气不耦合装药和水不耦合装药。