The pellets reportedly passed through a door jamb before striking the teen, likely slowing their velocity, according to the paper.

据报纸报道，铅珠很可能在袭击到小孩之前碰到门框而减慢了速度。

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At the striking position of the high-speed fluid to the static fluid, a velocity discontinuity appears, which propogates outwards in the film.

在高速流动的流体和静止流体撞击位置，流动速度出现间断，该速度间断的位置不断向液滴冲击区域外扩展。

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In the numerical calculation, the effects of striking object's initial velocity, and the shells 'geometrical parameters and the point of contact on the dynamic response of shells are discussed.

算例中，讨论了撞击物的速度、壳体的几何参数以及接触点的位置对浅球壳非线性动力响应的影响。

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