查询词典 derivate

After the brief retrospect of spectral methods applied to get the numerical solutions of partial differential equations, the Walsh spectral methods are extensively studied. A new method of designing the "derivate operator" and a new Walsh spectral method based on quasi-Walsh order are proposed, which primarily prove the special uses of it.

回顾了数值求解偏微分方程的谱方法，比较深入地考察了数值求解偏微分方程的Walsh谱方法，提出了一种新的设计"求导算子"的方法，基于这样设计出来的"求导算子"，提出了一种新的基于类Walsh序的Walsh函数的Walsh谱方法，初步验证了这种序的特殊价值。

Using Reynolds equation to derivate the formula for calculating bearing pressure distribution,then calculate pressure distribution of main bearing shell of tube mill on the basis of this formula.

本文用雷诺方程推导出计算轴承压力分布的差分公式；并以此为依据，计算管磨机主轴承轴瓦的压力分布；并为轴瓦的结构设计提出建议。

Results The infra-red spectragram of the derivate showed the chitosan had been modified by chloroacetic acid.

结果修饰后的衍生物经红外图谱分析表明，壳聚糖已被氯乙酸所修饰。

Topiramate is a monosaccharide D-fructose derivate that functions as a sulfamate and is currently used for the treatment of epilepsy and other neuropsychopathy.

托吡酯(topiramate，TPM)主要用于癫癎及其他神经精神疾病的治疗，通常耐受良好。

In this paper, the author tries to use the "concept—history—value—legislation" way to explore this specific system,firstly, from the thought of dealling with thecase of private international law to derivate the concept and categories of renvoi;secondly,study the e-mergence and development of renvoi from the perspective of comparative law; finally, places renvoi onPrivate International Law of China′s specific institutional environment,believes that renvoi should be ap-plicable as a legal exception rather than the form of universal acceptance,combined with the authors un-derstanding of renvoi,give the legislative proposals.

本文沿着&概念一历史一价值一立法&的途径进行探讨。首先，从处理国际私法案件的思路推导出反致的概念、类别。其次，从比较法的角度考察了反致的产生发展。最后，将反致置于我国国际私法的具体制度环境中，认为我国应当将反致作为一种法律适用的例外方式予以接受，并结合作者的理解给出了立法的建议。

The Liao Dynasty held dominion over Tangut from the rule of Shulu to Taizu to Taizong, under two governing principles, that is, the institution of tribe and the institution of tributary. The word "Tangut" derivate from Khitans.

辽朝对党项的经营经历了述鲁、太祖和太宗三个阶段；辽朝对党项的统治体制主要有两种：部族制度和属国制度；《辽史》中的&唐古&一词来源于契丹语。

In the second part of of this thesis, we firstly derivate the operation condition of intracavity SHG of dualwavelength laser from the rate equation, and then numerically calculate the relationship between the laser operation parpmeters and the pumping powers. And then we discuss two possible ways to get balancing outputs of the harmonic waves of the two wavelengths. By comparing the two ways, we find that the method by increasing the geometrical factor of 1079. 5nm SHG has the higher efficiency than the method by adding the additional loss of 1079. 5nm basic wave. Besides, the first method is easier to realize in experiment than the second method.

本论文第二部分从速率方程出发，通过求解速率方程的稳态解得到了Nd：YAP腔内倍频双波长激光的连续运转条件，数值计算得到了随泵浦功率变化的激光运转情况；计算、分析了通过增加主波长的倍频耦合几何因子和增加主波长的腔内损耗两种方法获得均衡的双波长倍频输出的运转情况，通过二者的比较，发现增加倍频耦合几何因子的方法比增加损耗的方法效率更高，而且在实验上更易于实现。

Equidistance point and difference theory in theory of function approximation are studied. Meanwhile, the relation among difference, difference quotient and derivate is revealed. By drawing Lagrange's and Cauchy's theorem of mean on difference and Taylor's formula into difference function, four theorems, such as Lagrange's theorem of mean on difference, are concluded in simple way. On the basis of these conclusions, the asymptotic property of middle point is studied, a series of new conclusions are drawn and the discussions on the asymptotic property of middle point in differential mid-value are summarized.

对函数逼近论中等距节点和差分理论进行了研究，揭示了差分、差商与导数之间的联系；将Lagrange中值定理、Cauchy中值定理、Taylor公式引入到差分函数中，简明地推导出Lagrange差分中值定理等4个定理，并在此基础上对&中间点&的渐近性进行了研究，得出了一系列&中间点&的渐近性的结果，概括了有关文献对微分中值公式的&中间点&的渐近性的讨论；给出的引理改进了函数逼近论的证明方法，精简了函数逼近论中的一些内容。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。