查询词典 variation

Firstly, the Voronovskaja type formula of asymptotic expansion of this kind of operators is given. Then the approximation of the bounded variation functions by the kinds of operators is discussed.

第一节给出该算子的Voronovskaja型渐近展开公式；第二节讨论该算子对有界变差函数的逼近。

In this paper, the horizontal 2-D numerical model is applied to model the rule of discharge variation at the entrance of the flood diversion area.

本文将通过平面二维水流数学模型来研究分蓄洪区口门的流量变化规律。

The first is standstill, atavism , variation or other disturbances of libido and sexual psychology in the course of recapitulation of development, and acquirement of experiences of climax principally by the mode of infantile sexual behaviors.

第一个原因是生长发育复演过程中性欲和性心理的停顿、返祖现象、变异或其他障碍，主要通过幼稚性行为的方式获得性高潮的经验。

According to the importance of frequen-cy in power system operation,the authors tested andcalculated the frequency attenuation time constant Tfand the static load frequency coefficient KL,whichcharacterinze the frequency variation of power system.

根据电网频率运行的要求，对表征电网频率特性的频率衰减时间常数Tf、静态负荷频率调节系数KL进行了试验研究和理论分析计算。

Variation of grid spacing and attenuation factor was used to get the best CoMSIA model.

所建立CoMFA和CoMSIA模型的交叉相关系数 q2值分别为0.718和0.655，并都具有较强的预测能力。

Variation of grid spacing and attenuation factor was used to obtained the best CoMSIA model.

所建立的CoMFA和CoMSIA模型的交叉相关系数q^2值分别为0.759和0.730，均具有较强的预测能力。

Variation of the grid spacing and attenuation factor was studied to get the best CoMSIA model.

在CoMSIA研究中，系统考察了各种分子场组合、网格点步长和衰减因子对模型统计结果的影响，发现立体场和氢键供体场的组合得到最佳模型。

This paper presents new data of electronic microprobe analvses on clinopyroxenes from the layers of picrite and associated basalt in this area. It is shown that the clinopyroxenes from the picrite are exclusively diopside, whereas those from the basalt are diopside and augite, suggesting a continuous variation in composition.

本文对该地区苦橄岩及其共生的玄武岩中单斜辉石的矿物化学成分进行了电子探针分析，结果表明，苦橄岩中的单斜辉石全部为透辉石，玄武岩中的单斜辉石种属有普通辉石和透辉石两类，但玄武岩中的单斜辉石成分呈连续演化关系。

To avoid or reduce re-analysis, we derived the augmentative matrix variation only in summation of the previous matrices time the outside-perturbed parameters by decomposing the element stiffness and mass matrix. The implicit function of amplitude about design variables such as cross-areas and lengths is changed into simplistic function about the perturbed parameters of design variables. Several methods for determining the value of perturbed parameters are detailed.

为避免或减少重分析，将有限元单元阵进行了分解变换组装，使振幅与设计变量如截面面积、长度的复杂隐函数关系转化为对设计变量摄动参数的显式关系，进而将设计变量摄动参数提取在分解后的几个常数刚度阵、质量阵之外，避免了在迭代求解过程中重组刚度阵与质量阵，较快地获得问题的解。

Experiment results demonstrated that EPS production by A. auricula was very sensitive to pH variation in submerged fermentation.

在此基础上提出了A.auricula发酵生产黑木耳多糖的两阶段pH控制策略：0—48h控制发酵液pH5.0，48h后控制pH5.5。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"