The set of formulas consists of DFT of sampled data, phase difference calculation and frequency calculation.
频率估计公式包括采样序列DFT、相位差计算和频率计算。
Aiming at the problem of on-line calculation to the temperature field for turbine rotor, the Crank-Nicolson finite-difference calculation model was given.
针对汽轮机转子温度场的在线求解问题，给出了克兰克·尼科尔森差分计算模型。
Programming of trial difference calculation could be realized, so time of calculation could be reduced effectively and parameter related could be adjusted conveniently.
通过图表数据函数化可以使试差计算程序化，因而有效减少试差计算时间，还能方便地调节有关参数。
There’s evidence that just improving basic calculation skills and inculcating a few key concepts could make a significant difference.
有证据显示，单是提高基础的计算技能和教授一些关键概念就能够使结果大不一样。
It's an easy calculation — we're just taking the negative of the binding energy, again that makes sense, because it's this difference in energy here.
这个计算很简单-我们，只需要取结合能的负值，同样这很容易理解，因为这就是这的能量差，所以我们得到的就是结合能，当它取负值，电离能就是5。
One difference you will often see is the cost of revenues applied directly against the revenues and a calculation of a net amount of revenues minus cost of revenues, which is called gross margin.
你通常会看到不同列报方式的一个区别在于收入对应的成本直接从收入中扣减并得出收入减成本的余额——毛利润。
Note: We will leave the four hidden buffer pools out of the calculation because they are too small to make any significant difference.
注意：我们会将4个隐藏缓冲池排除在计算之外，因为它们太小了，不会产生明显的不同。
Subgrade and pavement mainly bear the vehicle loads under the transport conditions. The actual working state of the subgrade and pavement has difference from the static mechanical calculation system.
路基路面结构在运营中主要承受交通车辆的作用，它的实际工作状态与现行的静态力学计算体系有较大的差距。
Although the study met the sample size dictated by the authors' apriori power calculation, the difference in the rerupture rate might be considered clinically important by some.
虽然研究的样本大小符合作者的先天决定的功率计算，在分析两组再断裂发生率之间差异时，可能需要一些重要的临床考虑。
This paper presents calculation of frequency and phase difference of flow signals with spectrum analysis on basics of Fourier transform (DFT).
本文采用基于傅立叶变换(DFT)的频谱分析方法，计算流量信号的频率和相位差。
This CNC system employs difference interpolation method for interpolation calculation, which can directly interpolate all of conic.
插补计算采用了差分插补法，能对所有的二次曲线进行直接插补。
Through calculation, the difference in the temperature field before and after the installation of a temperature equalizer was showed.
通过分析模拟计算得出温度场，发现加入温度均匀器前后窑内温度场有所不同。
To verify this method, comparing the result with direct integral, the difference is very small, but the calculation rate is efficient.
分析结果与直接积分进行对比相对偏差很小，验证了方法的正确性，同时使计算速度得到了提高。
Ordinary finite element and finite difference methods are often used for seepage calculation, while storage centered finite element method is rarely applied to practice.
普通有限元方法和有限差分方法是渗流计算中常用的数值方法，而贮量集中有限元方法则很少被实际应用。
The difference of heat transfer calculation between spiral plate heat exchanger and single shell and tube heat exchange is discussed in the article.
本文讨论了在传热计算中螺旋板换热器与单壳程、单管程列管式换热器的差异。
Splitting method and implicit time difference scheme are used in the numerical calculation.
数值计算中采用了分解算法及隐式时间差分方案。
In the third part, it manly studies the amount calculation of stolen property at price difference.
第三部分主要研究了被盗财物存在差价时的数额计算。
This paper presents a numerical calculation with finite difference method for two-dimensional turbulent jets mixing flow field.
本文给出了二维紊流射流掺混流场的有限差分数值计算方法。
The difference type direction integration is used for solving dynamic - equation, its calculation assumption causes a "calculation perturbation" effects to the system.
差分型直接积分法求解动力方程，其计算假设条件给系统增加了一个“计算扰动”效应。
According to the results of the calculation, the difference of temperature field in the kiln between before and after the temperature even installed is showed.
通过分析模拟计算得出的温度场，发现加入温度均匀器前后窑内温度场有所不同。
The temperature field and thermal camber of the roll are made in numerical simulation by finite difference method and the calculation values coincide better with the measured values.
采用有限差分法对轧辊温度场和热凸度进行了数值模拟，计算值和实测值吻合较好。
It has been proved by experiments that the difference between calculation data and experimental results is usually less than 5%.
实验表明，计算结果相对于实测数据的偏差一般在5 %以内。
By using a full-hidden finite difference method a numerical calculation was conducted of the above-cited model.
采用全隐式有限差分方法对模型进行了数值计算。
Based on the experiment results, analyses reinforcement effect of textile, gives the reasons of the difference in theory calculation and experiment result.
并结合试验结果对织物增强效果作出理论分析，分析理论计算与试验结果产生差异的原因。
Calculation method about phase difference and amplitude in interference pattern of convergent light has been proposed.
提出了晶体锥光干涉中两相干光的位相差和振幅的计算方法。
Continuously reviews the cost calculation. Material costs and manufacturing costs, analyze the cost difference with stranded cost and actual cost.
不间断的关注成本核算，材料成本和制造费用。分析实际成本和标准成本差异的原因。
Continuously reviews the cost calculation. Material costs and manufacturing costs, analyze the cost difference with stranded cost and actual cost.
不间断的关注成本核算，材料成本和制造费用。分析实际成本和标准成本差异的原因。
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