如果用近似模型来代替真实模型，那么近似模型精确度就变得非常重要。
If we substitute actual model for approximation model, the precision of approximation model is very important.
系统阐述了预测模型精确度比较、合理性检验、显著性检验等过程，指出了该领域的研究方向。
Then the accuracy comparison, rationality test and significance test of the forecasting models are systematically presented. Finally, the research directions of this area are briefly outlined.
增加模型精确度的一种已证实的方法是使用约束条件和对象约束语言(Object Constraint Language,OCL)。
A proven approach to add precision to a model is through the use of constraints and the Object constraint Language (OCL).
在不同的变工况过程中，以磨煤机冷风门和热风门开度为输入，所建立的磨煤机出口温度和入口空气流量的动态模型精确度较高，比较真实地反映了磨煤机的实际运行状况。
During the process of various off-design operating conditions with the coal-pulverizer cold air port and hot air port opening degree serving as an input a dynamic model…
然而，您经常忽视(或不能)在模型中加入适当级别的精确度。
However, you often neglect (or are unable) to add in the appropriate level of precision into your models.
向模型添加精确度的一种已证实的方法是通过使用约束和OCL。
A proven approach to add precision to a model is through the use of constraints and OCL.
从正在执行的流程中收集实时数据，这些流程可以用来提高未来流程模型的精确度。
Collect real-time data from executing processes that can be used to increase the accuracy of future process models.
当从模型中获得的信息缺乏足够的精确度时，您实现这些目标的成功几率就严重地受到限制。
Your success in reaching these goals is severely limited when the information captured within the model lacks sufficient precision.
您可以通过模型约束的规范和集合来增加模型的精确度。
You can increase model precision through the specification and assemblage of model constraints.
运用回归分析方法建立的某类销售量预测模型，对季节变化关联较强的商品的销售量有较高的预测精确度。
Certain sales volume prediction model established on the basis of regression analysis method has higher prediction precision to the types of commodity that closely related to the change of seasons.
根据误差模型及系数，采用软件进行误差补偿，有效地提高了测角系统的精确度。
The accuracy of angular displacement was increased greatly by software error compensation according to the error model and parameters.
确定系统的扩展方法，提高系统模型的精确度。回顾并批评你对“最佳”的定义。
Identify ways to expand your system and increase model fidelity. Review and critique your definition of "optimal".
并根据仿真模型分析了间隙、死区等非线性因素对系统精确度的影响，提出了改进性能的措施。
According to simulation model the effect of backlash and dead zone nonlinear on system performances was analyzed, and the measures of improving the system performances were put forward.
同时利用仿真模型分析了间隙、死区等非线性因素对系统精确度的影响，提出了提高传动系统性能的措施。
Based on the simulation model, the effect of backlash and dead zone nonlinear factors on the system performances was analyzed, and the measures to improve the system performances were given.
这两个数学模型都具有良好的可操作性和精确度，有一定的实际意义。
These two mathematics models both have good effectiveness and accuracy, with certain actual meanings.
在重建过程中，本文很好地解决了轮廓线定位、样条化光顺、曲面分型等难题，保证了三维模型的精确度。
During rebuilding of femur model, the theme has solved well some problems: orientation of contours, spline approximate, fractal of curved surface as to guarantee accuracy of model.
来自试验数据的回归模型具有足够高的精确度。
应用表明，该模型切实可行，预测结果的精确度很高。
Result proves that the model is practicable and had a high accuracy.
根据执行系统回转精确度测试实验，利用谐波分析原理，建立了相应的数学模型。
In this article according to the experiment of executive systems motion accuracy, the corresponding mathematical model is established by harmonic analysis principle.
本文旨在通过对某类常规战术导弹发射控制系统射击模型的分析，探讨导弹打击目标的精确度。
Through the analysis to firing model of the launching control system for a certain type conventional tactical missile, the firing accuracy to the target is discussed.
结论表明，计算模型的正确性决定评价结果的可靠性，力学参数控制评价结果的精确度。
The study results show that the reliability assessed conclusion is chosen by the correctness calculated model, and the precision evaluated conclusion is chosen by the mechanical parameter.
对季节变化关联较强的商品的销量，该模型有较高精确度的预测。
This model has high forecast accuracy if the commodities sales volume change has a high relation with season.
在感应电动机无速传感器矢量控制系统中，在负载条件下转子速度估计的精确度对电机内部模型参数误差非常敏感。
The accuracy of the rotor speed estimation in speed sensorless vector control system of induction motor under load is sensitive to parameter errors of the internal machine model.
这些增强，和分散的拉格朗日函数VOF方法结合，大体上改善表面张力模型的精确度。
These enhancements, combined with the Split Lagrangian VOF method, improve the accuracy of the surface tension model in general.
与传统的建模方法相比，具有精确度更高、速度更快尤其是不依赖已有的数学模型等优点。
Compared with the traditional modeling method, it is faster with higher accuracy, especially not reliant on the existing mathematical model.
那崭新-附加的介面转差模型进入改良精确度和流量解决的稳定度的帐户之内轮流这。
The newly-added interface slip model takes this into account improving accuracy and stability of the flow solution.
结果表明，基于BP网络进行移动用户规模预测模型有较好的精确度。
The results show that mobile users based on the scale of BP network prediction model has good accuracy.
利用广义高斯模型分析了分离算法的精确度。
Analyzed the precision of the solution farther using the generalized gauss model.
研究表明，灰色马尔柯夫链模型提高了预测的精确度和评价的可信度。
The results indicate that the precision of prediction and the reliability of evaluation are raised owing to the use of the Grey-Markov chains.
研究表明，灰色马尔柯夫链模型提高了预测的精确度和评价的可信度。
The results indicate that the precision of prediction and the reliability of evaluation are raised owing to the use of the Grey-Markov chains.
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