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The Galerkin method is used to transfer the partial differential equations to variation dynamic systems.

用Galerkin方法把偏微分方程转化为变分动力系统。

Fifteen patients underwent operation, including gastrostomy (6 cases), gastrotomy (4 cases), partial gastric fundus resection (2 cases), others operations (2 case), and laparotomy exploration (1 case); among them four patient died.

手术治疗15例，包括胃切开减压、胃造口术（6例），胃切开减压后再缝合创口（3例），胃切开减压、胃造口、空肠造口术（1例），胃底部分切除术（2例），十二指肠空肠吻合术（1例），空肠造口术（1例），开腹探查术未切开胃壁（1例），死亡4例(26.7%)。

In Chapter 6,by changing Gauss elimination method of solving linear algebraicequations in software package based on MPROWs and PEROWs into the elimination byband matrix and the elimination by varied bandwidth,we obtained the solver of ordinarydifferential equations,which is suited to solve the partial differential equations by themethod of lines.

在第六章，我们将基于MPROWs及PEROWs的软件包中求解线性方程组的通常的高斯消去法修改为带状矩阵消元法及变带宽消元法，从而获得适合于用线方法求解偏微分方程的常微分方程求解器。

The noise radiation of the gear case is estimated by a special method, in which, the impact of the vibration phase of each partial surface and the time of the sound wave from the surface to the position at which the noise is calculated are taken into account.

考虑到噪声辐射面各部分的振动相位和声波从它们传播到计算噪声点的时间互有区别，使用了在复数域迭加声波的辐射噪声计算方法。用这种方法计算了齿轮箱的辐射噪声分布。与已有的理论和试验结果进行了对比。

Tradition design about step gear-driven wastes partial carrying capacity of makings.

传统的多级齿轮传动设计浪费了材料的一部分承载能力，单目标的啮合参数优化方法精确度不够。

The ORF2 gene is the most important protein-code gene for porcine circovirus, and is the main gene differing porcine circovirus typel from porcine circovirus type2 (PCV2). To construct a specific PCR detecting method, we designed a pair of primers to amplify a partial fragment of ORF2 gene from PCV2, referring to fifteen strains complete genome published in Genbank. The PCR product was about 0.67kb in size detected by gelose gel electrophoresis.

猪圆环病毒的开放阅读框2(ORF2)是其主要结构蛋白的编码基因，也是区分猪圆环病毒1型(PCV1)和猪圆环病毒2型(PCV2)的重要基因，本研究参照GenBank已发表的15株PCV2基因序列，设计合成一对引物，对PCV2的ORF2基因进行PCR扩增，产物经琼脂糖凝胶电泳，呈现一条大小约0.67kb的特异条带，经条件筛选，建立了猪病料中PCV2感染的PCR检测方法。

The general factor and the partial factors of safety of pile foundations were discussed.

讨论了桩基础安全度控制的总安全系数与分项系数，推导了考虑分层土统计特性的分项系数的计算公式，还提出了用静力触探指标描述的变异性计算分项系数的方法。

Thirdly, according to the equivalent circuit of the dc motor, the dynamical model is set up. Then, the dynamical model for the hybrid-driven press is developed using Lagrange's formulation. The system's equation is derived using expressions for the system energy function, its partial and time derivatives with respect to the defined generalized coordinates.

其次，根据直流电动机的等效电路模型，建立了直流电动机的动力学模型和位置负反馈控制模型；应用拉格朗日方程建立了混合驱动压力机机电系统的动力学模型。

Using GLR to count the statistic distance, namely the generalized likelihood ratio statistics distance, is reasonable partition to the reverberation data, after partitioning, the neighboring two sections of reverberation data may be partial steady.

采用GLR统计距离，即广义似然比统计距离的方法，合理的对混响数据进行分段，分段后相邻两段混响数据可认为是局部平稳的。

The aim of this paper is to study the generalized inverse of matrices on rings, the generalized inverse of morphism and partial ordering of matrices.

矩阵广义逆的研究包括环上矩阵的广义逆，范畴中态射的广义逆，广义逆矩阵的计算和广义逆矩阵的应用等。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。