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包装系统受随机激励时的破坏情况与受冲击或者受谐波激励时的破坏情况是不一样的．必须用随机振动理论来分析和测试。
The damage of the packaging system under random excitation is not the same as the damage under the impact or the harmonic excitation. It must be analyzed and tested using stochastic vibration theory.