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The numerical calculation of grounding grid in large-scale substation under different conditions are carried out, including the breaking of grounding grid occurred in its edge part, in its mid-position as well as in different places simultaneously, thus the variation law of connective resistance of grounding grid under different conditions is obtained.

通过模拟计算，研究了变电站接地网导通电阻的变化规律，对不同情况下的接地网进行了模拟计算，包括边缘部分断开、中间部位断开以及多处部位断开，得出了不同情况下导通电阻的变化规律，结合变电站导通电阻的测试，将测试数据与计算数据进行比较，可判断接地网存在问题的位置。

The perturbation methods are the common analyzing method for studying thevibratory response of the mistuned bladed disk, but different perturbation methodshave their own relying conditions on the system parameters. In this dissertation, threekey perturbation methods are studied for their application conditions. Their relyingconditions on the system parameters are summarized.

本文对三种常用摄动法的构造特点及其适用性进行了研究，总结了它们在分析失谐叶盘系统振动响应时对于系统参数的适用条件；针对自适应摄动法在分析失谐叶盘系统振动响应时，对于基系统模态的选择难以控制的问题，提出了一种模态自动选择法。

First, we introduce and discuss the various methods of multivariate polynomial interpolation in the literature. Based on this study, we state multivariate Lagrange interpolation over again from algebraic geometry viewpoint:Given different interpolation nodes A1,A2 .....,An in the affine n-dimensional space Kn, and accordingly function values fi(i = 1,..., m), the question is how to find a polynomial p K[x1, x2,...,xn] satisfying the interpolation conditions:where X=(x1,X2,....,xn). Similarly with univariate problem, we have provedTheorem If the monomial ordering is given, a minimal ordering polynomial satisfying conditions (1) is uniquely exsisted.Such a polynomial can be computed by the Lagrange-Hermite interpolation algorithm introduced in chapter 2. Another statement for Lagrange interpolation problem is:Given monomials 1 ,2 ,.....,m from low degree to high one with respect to the ordering, some arbitrary values fi(i= 1,..., m), find a polynomial p, such thatIf there uniquely exists such an interpolation polynomial p{X, the interpolation problem is called properly posed.

文中首先对现有的多元多项式插值方法作了一个介绍和评述，在此基础上我们从代数几何观点重新讨论了多元Lagrange插值问题：给定n维仿射空间K~n中两两互异的点A_1，A_2，…，A_m，在结点A_i处给定函数值f_i(i=1，…，m)，构造多项式p∈K[X_1，X_2，…，X_n]，满足Lagrange插值条件：p=f_i，i=1，…，m (1)其中X=(X_1，X_2，…，X_n)，与一元情形相似地，本文证明了定理满足插值条件(1)的多项式存在，并且按&序&最低的多项式是唯一的，上述多项式可利用第二章介绍的Lagrange-Hermite插值算法求出，Lagrange插值另一种描述是：按序从低到高给定单项式ω_1，ω_2，…，ω_m，对任意给定的f_1，f_2，…，f_m，构造多项式p，满足插值条件：p=sum from i=1 to m=Ai=f_i，i=1，…，m (2)如果插值多项式p存在且唯一，则称插值问题适定。

D models are the most widely spread in the world of turbo-machinery for its simplicity, but they are indeed purely empirical correlations which not only fail to provide detailed information inside one or more components, but also require significant effort to recreate themselves if engine operating conditions or component representations change; quasi 3-D models have been the workhorses for compressor and turbine design for many years, and the primary benefit of using quasi 3-D system models is to facilitate the design and detail analysis of a particular component across the range of possible boundary conditions; Full 3-D models are gradually replacing quasi 3-D ones by virtue of requiring no exit flow angle model and loss model and being capable of predicting secondary flow in cascade.

零维模型由于使用时简单易行，因此在涡轮发动机的仿真中得到广泛应用，但零维模型作为纯粹的经验关系式无法反映部件内部的流动细节，并且一旦部件有少许改动则新特性的建立耗费巨大；准三维模型由于能够详细地提供部件内部的流动情况，方便设计而成为涡轮和压气机设计的主要工具；全三维数学模型正逐步取代准三维模型在涡轮设计中的主导作用，同后者相比前者能够预测叶轮机械内的二次流动，在粘性流计算时不需要气流角和损失的经验公式，因此拥有巨大的发展前景。

Under the conditions of 24 h fumigation with 30 μL/L dosage at 19 °C, 25 °C and 31 °C, the adult corrected mortalities were 83.108%, 62% and 42%, respectively. These results indicated that the EtF killed the adult weevils in a very short time period, and the fumigation efficacy at relatively lower temperature was better than that at relatively higher temperature. Under the conditions of 20, 25 and 30 °C and 24 h fumigation

1.2 甲酸乙酯对赤拟谷盗的熏蒸活性同样采用广口瓶密闭熏蒸法，在不同的药剂浓度、处理时间和温度下系统研究甲酸乙酯对赤拟谷盗T.castaneum卵、低龄幼虫、高龄幼虫、蛹以及成虫的熏蒸致死作用，结果表明处理时间和温度显著影响甲酸乙酯对赤拟谷盗各虫态的熏蒸致死效果，48h内就能发

For predatory war in the West, Japan is exerting every ounce of energy in the East in order to prepare the ground, according to a definite plan, for the subjugation of China at a single stroke -- she is creating the military, political, economic and ideological conditions at home and the diplomatic conditions internationally, and fostering the pro-Japanese forces in China.

和希特勒、墨索里尼在西方加紧准备的强盗战争相呼应，日本在东方正在用尽一切气力在确定的步骤上准备一举灭亡中国的条件——国内军事的、政治的、经济的、思想的条件，国际外交条件，中国亲日势力的扶植。

In concert with the intensified preparations of Hitler and Mussolini for predatory war in the West, Japan is exerting every ounce of energy in the East in order to prepare the ground, according to a definite plan, for the subjugation of China at a single stroke -- she is creating the military, political, economic and ideological conditions at home and the diplomatic conditions internationally, and fostering the pro-Japanese forces in China.

和希特勒、墨索里尼在西方加紧准备的强盗战争相呼应，日本在东方正在用尽一切气力在确定的步骤上准备一举灭亡中国的条件——国内军事的、政治的、经济的、思想的条件，国际外交条件，中国亲日势力的扶植。

The effect of the substrate concentrations on 5-fluorouridine production was investigated in the presence of various concentrations of uridine and 5-fluorouracil under the optimal conditions mentioned below. The best conversion yield, 49% was obtained in optimal reaction conditions.

我们也探讨了在不同反应条件下5-氟尿苷的酶促合成，结果表明，产气肠杆菌EAM-Z〓游离细胞以UR和5-FU作为底物合成5-FUR的最佳条件为：最适pH为7.8，最适温度55℃，UR/5-FU为2.8，磷酸盐浓度为30mM，菌体用量为10％，反应时间为9h。

At EISCAT site, the starting altitude of upflows is found to lower from 350 -400 km under quiet conditions to 200-250 km under disturbed conditions.

在EISCAT站，太阳活动高年期间，磁扰动时高速上行离子流出现的起始高度，由平静时的350-400km降低至200-250km。

For the auto mentioned in the paper, we analyze and establish the dynamic equations under different power systems, respectively discuss the system efficiency of HEV under the conditions of whether the storage battery power is zero or not, utilize the SQP to compute the corresponding optimal decelerating rate and optimal storage battery power under the conditions of different speeds, different demand torsions and different storage battery SOC; then use the optimal computation results to summarize the rules of auto optimal control, provide the foundations for the optimal control rules in the future.

对于本车，分析并建立了在不同动力系统工作模式下的动力学方程；分别讨论了当蓄电池功率为零和蓄电池功率不为零两种情况下的HEV的系统效率；利用序列二次规划法来求解出在不同车速、不同汽车需求转矩和不同蓄电池SOC情况下对应的最佳减速比和最佳蓄电池功率；利用优化计算结果，初步总结了一些车辆优化控制规则，为将来更好的优化控制规则提供了依据。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。