The dummy variables can only describe discrete changes in price indices, such as selling off-season dummy variable method will not be able to provide high precision analysis.
而虚拟变量只能描述价格指数的离散变化，比如在销售淡季虚拟变量法就不能提供精度较高的分析结果。
Here different grey system theoretical models are used to fit the experiment data; the error analysis demonstrates that the precision is high.
这里主要运用不同的灰色系统理论模型对实验数据进行拟合，误差分析显示精度是很高的。
And it has a high precision, strong restraining random interfering noise. As a result, it makes loading-spectrum analysis more accurate.
而且该算法精确度高，抗随机噪声干扰能力强，使得载荷谱分析更加准确。
According to the analysis of simulation results compared with BP algorithm, this algorithm has the advantage of the fine stability, fast convergence speed and high precision.
通过与BP算法的仿真结果比较分析，发现该算法具有稳定性好，收敛速度快，预测精度高的特点。
The precision analysis and practical application indicate that all the results are reliable and united several precision surveying methods can satisfy high accuracy.
精度分析和实际应用表明；观测成果是可靠的，采用几种精密测量方法联合进行，可以满足观测标志的高精度要求。
FEM (Finite Element Method) analysis technology has already been used widely in high precision stamping industries.
有限元法分析技术在高精密冲压行业中已经广泛应用。
Because of good applicability and high precision the finite element analysis method has become the preferred method for numerical magnetic field computation of machines.
由于电磁场有限元分析方法具有通用性好、计算精度高的特点，因此成为目前首选的电机磁场数值计算方法。
The results obtained not only reveal its briefness, high precision, and its extensiveness but also provide a reliable premise for the vibration analysis of more complex annular sector plates.
计算结果表明，该方法不仅运算简捷、精度高、适用性强，而且为分析更为复杂的环扇板的振动问题提供可靠的基础。
The results obtained not only reveal its briefness, high precision, and its extensiveness but also provide a reliable premise for the vibration analysis of more complex sector plates.
数值计算结果表明该方法不仅具有较高的精度和稳定性，而且还为分析更为复杂的扇形板结构的振动问题提供了可靠的前提。
The simulation results and analysis show that the designing realize the signal′s fast acquisition under high dynamic circumstance and keep dynamics performance and tracking precision at the same time.
仿真结果和分析表明该方案能在高动态环境下实现信号的快速捕获，且能较好地满足接收机动态性能和跟踪精度的要求。
The combination of short time spectrum analysis, extraction and iteration has a high estimation precision and a little amount of computation.
该方法通过短时谱分析与抽取叠代相结合，提高了估计精度，减少了运算量。
Because of its adaptation to shape and high precision, the finite element method has a more and more important role in the analysis of optical waveguides.
作为一种重要的数值分析方法，有限元法凭借其对光波导任意形状的适应性、高的计算精度等特点，将在光波导分析中起到越来越重要的作用。
This devices measure the distance in high precision and reliability of the final text analysis of the causes of the errors and how to improve the system.
该系统对有限范围的距离测量具有较高的精度和可靠性，最后文中分析了误差产生的原因及如何对系统进行完善。
Compared with the analytical results, the numerical results have attained a high precision. The study provides a basis for a theoretical and numerical analysis on defectoscopy.
通过实例计算，将数值解结果与解析解结果进行比较，数值解结果具有较高精度，为工程实际中的无损检测提供了理论和计算分析依据。
The result of analysis shows that this instrument is entirely free of the effect of personal equation, and the precision of observation is high.
分析结果表明，新仪器完全消除了人差的影响，观测精度是良好的。
The analysis shows that the system features high control precision and it is easy to be automatically controlled.
分析表明，该系统具有控制精度高，易进行自动控制的优点。
The theory analysis and experiment demodulate that the FBG flowmeter system has advantages, such as temperature independent, intrinsical safe, wide measurement rang and high precision.
理论分析和实验结果表明，该传感系统具有温度不敏感、本征安全、量程大和精度高等优点。
Through regression analysis of models, this model proved to have good curve fitting characteristics, relatively high precision models.
通过对模型进行回归分析，证明此模型具有良好的曲线拟合特性，模型精度较高。
The differential potentiometric stripping analysis has high sensitivity and stability in determining lead in cigarette and its precision and accuracy are up to the standard of microanalysis.
用微分电位溶出法测定香烟中铅灵敏度高，稳定性好，精密度和准确度均符合微量分析的要求。
Through analysis for related test data, it can be seen that high accuracy turret azimuth Angle has improved target capture probability and target detection precision of system.
通过分析相关试验数据，可以看出高精度的炮塔方位角有助于提高系统对目标的探测精度和截获概率。
Most of the present change detection methods aim at land cover applications using low-resolution images, and generally can not meet the needs of high-precision analysis.
目前大部分变化检测研究主要集中在利用低分辨率卫星影像检测土地利用等宏观应用上，往往不能满足高精度分析的要求。
Case study indicates that precision of the model is rather high and better than the other models, and has some practical value when being used in the dynamic groundwater level analysis.
预测结果与实测结果吻合较好，达到了较高精度，该方法对于地下水的动态预报具有一定的实用价值。
The optical analysis method of gas concentration has advantages of large measurement range, high precision, untouched on-line measurement and so on.
气体浓度光学分析方法具有测量范围宽、精度高、非接触在线测量等优点。
A novel method about two dimension Fourier frequency analysis is proposed in order to obtain high radial rotate precision.
为了改善高速磁浮主轴的径向回转精度，该文提出了二维傅里叶频率分析的新方法。
It is a rapid analysis method which possesses high accuracy and precision.
该方法准确度高，重现性好，分析速度快。
Through the analysis of simulation results as compared with BP algorithm, this algorithm has the advantages of fine stability, fast convergence speed and high precision.
通过与BP算法的仿真结果比较分析，发现该算法稳定性好，收敛速度快，预测精度高。
The result of statistical analysis points out that the equation has high calculation precision.
统计检验结果表明，该公式具有较高的计算精度。
The analysis of simulation results showed that the control law designed had high steady precision and fast dynamic response.
结果表明，所设计的控制律的稳态精度高、动态响应快。
The analysis of simulation results showed that the control law designed had high steady precision and fast dynamic response.
结果表明，所设计的控制律的稳态精度高、动态响应快。
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