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The inverse radius vector transform is applied in this paper to change the boundless space into a bounded domain,so that the finite element method can be used in computing electromagnetic fields with open boundaries.

目前，在电磁场数值分析中，有限元法得到了广泛的应用，但一般都认为有限元法适用于有界空间中的电磁场问题，这是因为对于无界空间中的电磁场问题，方法的直接应用存在着一定的困难。

Objective To construct a prokaryotic expression vector encoding first 193 amino acids of BPI N terminal.

目的：建立杀菌/渗透增强蛋白 N 端193个氨基酸的重组表达质粒。

Objective To construct a prokaryotic expression vector encoding first 193 amino acids of BPI Nterminal.

目的：建立杀菌/渗透增强蛋白 N端193个氨基酸的重组表达质粒。

The generalized deformation equations and the distribution function of branch vector are derived, and the mathematical characteristics of fabric tensor N are also discussed.

在此基础上导出了形变方程的一般形式，对技向量的分布函数进行了理论上的推导，还对组构张量N的一般数学特征进行了讨论。

Coli BL21 and purified. The binding activities of immune sera to three EDs were examined with ELISA and Western blotting analysis.②Asthma model was induced with ovalbumin in mice of vaccine group, control vector group and asthma group. Airway pressure-time index and number of cells in BALF were checked. The quantity of goblet cells in bronchiole and the level of MUC5AC mRNA in lung were investigated by PAS staining and RT-PCR assay.

采用ELISA和Western blotting法检测免疫血清抗体对ED的亲合力。2、对DNA疫苗组小鼠制备OVA致敏哮喘模型，检测气道压力峰值—时间指数、支气管／肺泡灌洗液中炎性细胞数量，PAS特染观察小支气管杯状细胞数量及RT-PCR法检测肺组织中粘蛋白MUC5AC mRNA水平，免疫组化和RT-PCR法检测GM-CSF的蛋白与mRNA水平。

The modeling method of valve components is based on the impedance measurements. Vector fitting is used to approximate the rational functions and Brune method is applied to provide equivalent circuits suitable for EMTP or PSCAD.

其中，阀组件内各元件的阻抗通过网络分析仪测量，然后通过矢量匹配进行零极点提取，最后通过布隆法进行网络综合得到阀组件各器件的宽频等效电路。

CDNA fragment of cadherin-like protein gene in the fifth instar larva of oriental tobacco budworm was amplified using degeneracy primers and RT-PCR technique, and the target fragment was further sequenced after being cloned into pMD18-T vector plasmid.

本研究以烟夜蛾五龄幼虫中肠的总RNA为模板，根据已经克隆的其他昆虫的类钙粘蛋白基因序列设计引物，利用RT-PCR技术扩增出了烟夜蛾类钙粘蛋白基因的cDNA片段，将其连接到pMD18-T载体，转化大肠杆菌后筛选阳性克隆并进行序列测定，测序得到的1335bP的片断编码444个氨基酸残基。

Insect resistance to Bt toxin is related with the variation of cadherin-like protein gene.cDNA fragment of cadherin-like protein gene in the fifth instar larva of oriental tobacco budworm was amplified using degeneracy primers and RT-PCR technique,and the target fragment was further sequenced after being cloned into pMD18-T vector plasmid.

本研究以烟夜蛾五龄幼虫中肠的总RNA为模板，根据已经克隆的其他昆虫的类钙粘蛋白基因序列设计引物，利用RT-PCR技术扩增出了烟夜蛾类钙粘蛋白基因的cDNA片段，将其连接到pMD18-T载体，转化大肠杆菌后筛选阳性克隆并进行序列测定，测序得到的1 335 bp的片断编码444个氨基酸残基。

With primers designed according to sequence(AY052417) of diapause pupae of oriental tobacco budworm registered on GenBank, a double-strand cDNA fragment of DH gene was obtained from RT-PCR amplification and was further cloned into pGEM-T Easy vector.

根据GenBank发表序列(AY052417)设计引物，以烟夜蛾(Helicoverpa assulta Guenée)滞育蛹为材料，利用RT-PCR技术扩增到滞育激素(diapause hormone，DH)cDNA，并通过TA克隆的方法将其克隆至pGEM-T Easy载体上，对目的基因进行测序，并利用设计的酶切位点将目的基因从T载体上切下。

When designed the project of mobile service system , basing on the characteristics such as the bulkiness of users ,variety of users's terminal device , etc , adopted Scalable Vector Graphics which is XML's dialects on graphics , developed an opening mobile service system through combining the portability of java .

在基于位置的服务系统方案设计中，针对该系统具有用户群庞大、用户终端设备的多样性等特点，采用XML在图形上的方言——SVG技术，结合Java的可移植性，开发了一个开放的基于位置的服务系统。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。