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1·The effects of nose length, projectile mass, and the mechanic performance of plate material on the plugging failure were analyzed.

分析了弹头长度、弹丸质量和靶板材料参数对临界半锥角的影响。

2·Aim: To measure mass, centroid and centroidal deviation of projectile body.

目的：对弹体的质量、质心及质偏进行测量。

3·The mass center motion equations of a damp-increasing range correction projectile were established by the concept of damp-increasing coefficients.

用增阻系数的概念，建立了增阻式射程弹道修正弹的质心运动方程组。

4·The mass center motion equations of a damp-increasing range correction projectile were …

用增阻系数的概念，建立了增阻式射程弹道修正弹的质心运动方程组。