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After simplifying the relation between Ne and time, the formula of 3-D parallel-beam tomography is theoretically deduced and proved to be the same as the 2-D CIT inversion formula derived by K.C. Yeh when it is applied to 2-D cases.

在二维情况下，本文导出的三维平行束层析重建公式与Yeh等给出的二维电离层层析重建公式相同。

The one order differential model and convolutional model of impedance formula of amplitude versus offset inversion were established. Impedance inversion formula from AVO was derived based on Bayesian framework. Methods of using Huber function as prior model parameter distribution and covariance matrix from well log as constrains were developed. The P-wave impedance, S-wave impedance and density were calculated by the conjugate gradient algorithm.

为此建立了振幅随偏移距变化波阻抗反演公式的一阶差分模型及褶积模型，推导了基于贝叶斯理论的AVO波阻抗反演公式，给出了采用Huber分布作为模型参数的先验分布及测井数据的参数协方差矩阵作为约束条件的实现方法，并利用共轭梯度法计算了纵、横波阻抗及密度。

During the reaction, a by- product, shown as formula below, is formed at the same time as the pseudo-ionone, because of an impurity in the citral, thereby resulting in a mixture of pseudo- ionone and formula, referred to herein as a pseudo- ionone mixture or as crude pseudo-ionone.

假性紫罗兰酮的制备柠檬醛和丙酮的下列反应：这种反应通常是进行的温度面向对象之间的1000长在反应，1分产品，如公式所示以下，在形成同时，伪酮，因为有一个杂质在柠檬，从而在一个假性和公式混合物产生的，下称一假性混合物或原油伪紫罗兰。

The paper is based on Professor Hu Yong-shengs academic thoughts and clinical experience, and have a research on formula and herbs of treating hypertension of irascibility. Summarizing the law of his using formula and herbs while treating hypertension , so as to have benefit to clinical work in treating this kind of disease .

本文在继承国家名老中医胡永盛教授学术思想及临证经验的基础上，对其治疗高血压病肝火亢盛证方药进行研究，总结出治疗本病的规律，以期对临证治疗用药有所裨益。

By using the algebraic method, we obtain a new formula for the expected hitting time of random walks on strong-connected and aperiodic digrahs (irreducible and aperiodic Markov chain). From this formula, we obtain the explicit expressions for the expected hitting times of random walks on directed de Bruijn graph, directed Kautz graph and some graphs constructed from strong regular graph, etc.

利用代数方法给出了强连通非周期有向图上随机游动（即不可约非周期马尔可夫链）平均首达时间一个新的表达式，并利用这个表达式得到了有向de Bruijn图，有向Kautz图以及和强正则图相关的几类图上随机游动任意两点之间的平均首达时间。

In this paper a second order step size iteration formula is derived in detail and the recursive expression for the expanded N-order step size iteration formula is deduced.

文中详细推导了2阶步长迭代公式，并导出了扩展的N阶步长迭代公式的递归表达式。

In order to improve and simplify the solution, the relationship between frequency and cable tension was studied by conducting numerical iterative computation. Furthermore, the format of the existing formula for cable tension identification was investigated, and one set of practical formula for cable tension identification were proposed by employing numerical fitting method.

为提高精度及简化计算，通过分析迭代计算得到的反映频率与索力相关关系的曲线，和已有索力识别经验公式的形式特点，进行数值拟合，提出一组索力计算的实用公式。

The formula k of empirical electron theory of solid and molecules is derived by quantum mechanics with consideration of probabilities of orbital s, p, d , occupied by electrons, and a new formula k is given.

作者曾考虑了s， p，d轨道被价电子占据的几率，对固体与分子经验电子理论中的k公式重新进行了量子力学推导，给出了一个新的k公式。

What are the main differences in the driving style required for a kart, Formula Renault and Formula 1?

问题：你觉得在卡丁、雷诺方程式和F1的驾驶风格的要求上有什么主要的区别？

If you are formula feeding then consider a lactose free formula to see if this helps.

如果您是公式喂养，然后考虑乳糖免费公式，看看是否这会有所帮助。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。