For charges with defect, the more the void ratio,the higher the value,indicating that a higher quality charge can improve the safety of overload resistance of charge,the speci...

• 装药中保持一定的孔隙率可以提高装药的抗过载能力,从而说明了分步压装工艺装药密度分布对装药的抗过载安全性是有利的。