1) dot-imprints on cartridge case shoulder
弹壳肩部圆点痕
2) mark's change on the base of cartridge cas
弹壳底部痕迹变化
3) cartridge case trace
弹壳痕迹
1.
4" pistol will form five kinds of bullet traces and eleven often-seen cartridge case traces after shooting.
62mm手枪射击后会形成5种弹头痕迹和11种常见的弹壳痕迹。
4) shell marks
弹壳留痕
5) elastic cylindrical shell
弹性圆柱壳
1.
A symplectic method and dynamic buckling of elastic cylindrical shells under both axial impact and internal or external pressure;
辛方法和弹性圆柱壳在内外压和轴向冲击下的动态屈曲
2.
In this paper,non axisymmetric buckling of an elastic cylindrical shell,which is impacted on the end by axial step loads,is discussed with the aid of the stress wave propagating.
讨论弹性圆柱壳端部受冲击载荷作用，在应力波传播过程中的非对称屈曲问题。
3.
This paper deals with the bifurcation problem of the propagation of axial waves for semi infinite elastic cylindrical shells, whose ends are considered by three kinds of end supports and impacted by step and impulse loads.
考虑应力波的传播，讨论了半无限长弹性圆柱壳在端部轴向冲击下动态屈曲问题。
6) Elastic cylindrical shell
弹性圆筒壳
1.
The elastic cylindrical shells are widely used in many kinds of structures of engineering and electric equipments.
弹性圆筒壳广泛应用于各种工程结构和电子设备中。
补充资料：圆点
见绝对形。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条