应用势能变分原理导出了位移间断条件，它仅与材料的强度有关。
Based on the variational principle of potential energy, displacement jump condition which depends only on material strength is derived.
并且该系统会不间断的监视伤者的身体条件，任何的变化，比如心跳的急剧加速，那么系统将会给出警报信号——当前的动作应该被取消。
It would also constantly monitor the person's condition and any change - a dramatic rise in heart rate for example - would signal an alert that action needed to be taken.
即使初始条件十分光滑，双曲守恒律方程的解也可能出现间断。
The solutions of the Hyperbolic conservation laws might develop discontinuity even if the initial conditions are very smooth.
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