The analysis and calculation show that: the decision model of oxygen -making machine production program solves the problem of selecting oxygen -making machine in large oxygen -making system.
理论分析和实例计算表明，所提出的氧气生产方案优化决策模型解决了大型制氧系统的制氧机合理选择问题。
The critical production pressure drop and critical output during sanding in oil Wells were gained by the calculation with the channel sanding prediction model.
通过孔道出砂预测模型的计算，得到了油井出砂时的临界生产压差和临界产量。
According to production practice and theoretical calculation results by energy mathematical model, it is proved that the method is feasible.
根据生产实践并通过总的能量数学模型及模型应用的理论计算结果说明该方法是可行的。
The calculation model of heat transfer entropy productions of convective heating surfaces of boiler is set up, and the calculating formula of heat transfer entropy production is presented.
建立了锅炉对流受热面传热熵产的计算模型，并给出了传热熵产生数的计算公式。
It has been verified by practice that this model is fast and accurate in calculation, and worth of spreading in production prediction.
通过实际验证，该模型具有运算速度快、准确率高的特点，是一种具有推广价值的产量预测方法。
Applying Cobb-Douglas Production Function and the time variable, the author creates a metrological model of staff turnover cost for precise calculation as well as positive studies.
运用柯布—道格拉斯生产函数，引入时间变量，创建了员工流失成本计量模型，精确计量员工流失成本并运用此模型进行实证分析；
This model covers four bands and has a small amount of calculation, thus it can easily come true and has enough precision to meet real-time monitoring grassland production on a large scale.
本模型涵盖了四个波段，计算量小，容易实现，且精度可以满足大范围草原产草量动态监测。
This model covers four bands and has a small amount of calculation, thus it can easily come true and has enough precision to meet real-time monitoring grassland production on a large scale.
本模型涵盖了四个波段，计算量小，容易实现，且精度可以满足大范围草原产草量动态监测。
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