The cquations can be used for the study of any states of projectile trav-eling in the bore, such as the bourrelet always contact or uncontact or impact with the bore, and for thestudy of projectile initeul disturbance.

• 该方程组可用于对弹丸的任何膛内运动状态(定心部不与膛壁接触、与膛壁碰撞、贴膛)的运动进行求解；进而可计算弹丸的起始扰动.