通过数值计算和分析，给出了临界速度与冲击质量、线性强化模量及临界时间间的关系。
By numerical computation and analysis the relationship among critical velocity and impact mass, hardening modulus, buckling time was given.
通过理论分析和数值计算，得到了临界速度与冲击质量、临界长度及线性强化模量间的关系。
The relationship among critical velocity and impact mass, critical buckling length, hardening modulus is given by using theoretical analysis and numerical computation.
最后，卫生服务质量也影响任何大流行冲击的程度。
Finally, the quality of health services influences the impact of any pandemic.
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