• 研究系统刚度粘性阻尼系数尤其是等参数对系统固有频率阻尼影响

    The effect of stiffness constant, viscosity damper coefficient and variable mass on the damped frequency and the relative damping ratio of the system were studied.

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  • 物流角度来讲缩短冷链物流流程时间能够减少食品变质风险提高安全系数

    From the point of logistics, reducing the time of cold chain logistics process can reduce the risk of food deterioration and raise the food safety level.

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  • 对物品变质需求价格敏感系数零售商订货量订货周期、出售价格和单位时间利润的影响进行数值分析,并给出了数值算

    Sensitivity analysis with the numerical example shows that order quantity and replenishment cycle are very sensitive to the deterioration rate, but the retailer's profit per unit time is not. The …

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  • 对物品变质需求价格敏感系数零售商订货量订货周期、出售价格和单位时间利润的影响进行数值分析,并给出了数值算

    Sensitivity analysis with the numerical example shows that order quantity and replenishment cycle are very sensitive to the deterioration rate, but the retailer's profit per unit time is not. The …

    youdao

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