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The common SVD algorithm was briefly discussed and analyzed on the basis of vector space,and a new iterative scheme was proposed to achieve the nonnegative constraint.Based on this scheme,the SVD inversion algorithm was improved.

摘要介绍了核磁共振T2谱传统奇异值分解反演算法，从向量空间的角度对算法进行了分析，提出了一种新的实现非负约束的迭代方案，并根据这个方案改进了传统的SVD反演算法。

The structure,composition of pectin and the mechanism of bio-degumming are briefly introduced in this paper,the application,research progress of enzymatic degumming and retting for bast fiber s pulping are particularly summarized.

简单介绍了果胶的结构、化学组成及生物脱胶机理，详细总结了韧皮纤维酶法和发酵浸渍法脱胶制浆的研究、应用和发展情况，并对影响发酵浸渍法制浆原料和脱胶菌株的特性，特别是脱胶过程中主要外界因子进行了综述。

We briefly reviewed the mating system of insects with emphasizing a historical research on the sexual selection conducted by Bateman.

简要回顾昆虫交配系统的研究历史，并简述 Bateman的性选择原理，讨论雌雄昆虫在交配过程中的角色和性选择压力的相对关系。

As befits a company that was briefly the world's largest by market capitalisation, PetroChina has a nicely-developed sense of bathos.

中石油日前再度成为全球市值最大的公司，与这种地位相称的是，该公司具有非常好的"造势"悟性。

Until, before and during the culture revolution, the enthusiasm for politic had made the form of sculpting become a kind of artistic exaggeration in the vision of picture poster, in which there were three things accounted for the occurrence: firstly, the stylized shapes and composition formed an unitary expression; secondly, to be in 'high spirits' for politic must have an exaggerated and strengthened way of expression to suit with; thirdly, it was restricted by then economy and technology level so as to have to use plenty of cement as substitute, in which had only modeled on a big scale briefly.

及至文革前及文革时期，这种政治热情使雕塑语言发展成了一种夸张的宣传画式的视觉效果。其原因有三。

The first chapter presents the significance and its values in the practice of the task. It briefly introduces the development history of BEM and its advantage. The main task of this paper is presented in the chapter.

第一章阐明了课题的研究意义和应用价值，简单介绍了本文所用的数值计算方法一边界元方法的发展历史和优点，同时介绍了本文的主要工作。

The coking crude benzol hydrogenation process and its catalytic system are discussed, and the domestic application of the hydrogenation process is introduced briefly.

论述了焦化粗苯加氢精制的工艺方法及其催化体系，并简单介绍了国内加氢工艺的应用。

This chapter briefly introduces theory on the efficiency of state-owned companies, theory based on Berle and Means hypothesis, theory based on LLSV hypothesis and theory on pyramidal structure, with the aim of providing theoretical background for study on China's listed companies.

第二章是理论研究回顾，介绍国内外相关的理论研究成果，包括国有企业效率的理论研究、Bede和Means范式的理论研究、LLSV范式的理论研究、金字塔控股结构的理论研究四个方面，从而较系统地了解国内外相关理论成果。

Let us very briefly rehearse one or two facts about nuclear beta decay.

让我们非常简要地复述一下有关该β衰变的一两件事实。

with the development of satellite navigation communication,antenna is a very important unit,performance of the satellite navigation communication system is affected by it partly.a new type of bifilar helix for satellite navigation communication system is introduced,and the traving-wave bifilar helix is analyzed briefly.meanwhile,the design and the test results are given.the results show that the antenna possesses excellent circular hemispherical beam with wide angle circular polarization and better impedance match,and has a compact structure and high integration.it can be applied in caps systems successful.

小 摘要：随着卫星导航通信技术的迅速发展，天线作为卫星导航通信系统中的重要部分，在一定程度上决定着卫星导航通信系统的性能。介绍一种用于卫星导航通信系统的双臂螺旋天线，讲述爬行波式螺旋天线的设计过程，并给出最终测试结果。结果表明，该天线具有优良的圆对称半球波束，良好的广角圆极化特性和优良的阻抗匹配特性，其结构简单、紧凑，为通信入站回传提供了一种优良的选择。

" I' d like to get some rough idea about music in the baroque ear, please."

请简要介绍一下巴罗克时期的音乐，好吗？

The results showed that the peak latency and pattern of SEPs elicited by electrical needling in LI-l1 and MP were similar. The amplitude of SEPs elicited by electrical needling in LI-l1 was higher than that of MP. There was no obvious SEPs generation when MM was electrical needling.

结果显示，电针刺激曲池穴和其邻近桡侧伸腕长肌运动点诱发性脑电波的波形和波峰时间是类似的，只是穴位的诱发性脑电波波幅较大，而电针刺激非穴位点并没有明显的诱发性脑电位。