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Mauriac preface for the twenty-fifth anniversary edition by Robert McAfee Brown.

莫里亚克前言为第二十五届周年纪念版由Robert McAfee的布朗。

This 30th anniversary edition of The Columbian Exchange includes a new preface from the author, reflecting on the book and its creation, and a new foreword by J. R. McNeill that demonstrates how Crosby established a brand new perspective for understanding ecological and social events.

这是哥伦比亚交易所30周年版本包括来自政府提交新的序言,在这本书,反映了其创建,以及由JR麦克尼尔,演示了如何理解克罗斯比建立生态和社会活动一个全新的视角新的前言

The corrosion rates of mild steel in soil was studied by means of polarization curve measurements on steel specimens with various extent of corrosion in laboratory.

1前言土壤中钢铁的自然腐蚀是钢铁在外界侵蚀性介质的作用下发生电化学和化学过程而受到的破坏。

The second chapter discussed the definition and nature of dashes inverse A in generalized inverse as well as its application in compatible linear equations. The third chapter discussed the definition and calculation of the minimum norm inverse A in generalized inverse, as well as the Minimal Norm Solution of its compatible linear equations Ax = b.

前言从引进广义逆矩阵的定义着手,介绍了它的历史概况以及发展的背景及其意义;第1章从广义逆的发展历程讨论由Moore-Penrose方程确定的各种广义逆的定义;第2章讨论广义逆中的减号逆A 的定义及性质以及在相容线性方程组的应用;第3章讨论广义逆中的最小范数逆A 的定义及计算以及它与相容线性方程组Ax=b的极小范数解。

The preface gave the definition and introduced history, background of development and significance of generalized inverse matrix. The first chapter, from the development process of generalized inverse, discussed all kinds of definition of generalized inverse determined by the Moore - Penrose equations. The second chapter discussed the definition and nature of dashes inverse A in generalized inverse as well as its application in compatible linear equations. The third chapter discussed the definition and calculation of the minimum norm inverse A in generalized inverse, as well as the Minimal Norm Solution of its compatible linear equations Ax = b.

前言从引进广义逆矩阵的定义着手,介绍了它的历史概况以及发展的背景及其意义;第一章从广义逆的发展历程讨论由Moore-Penrose方程确定的各种广义逆的定义;第二章讨论广义逆中的减号逆A 的定义及性质以及在相容线性方程组的应用;第三章讨论广义逆中的最小范数逆A 的定义及计算以及它与相容线性方程组Ax=b的极小范数解。

As comparing with adopting traditional optical lever method to measure Young' s modulus of elasticity E.

1前言 在普通物理实验中,对杨氏弹性模量的测量是采用光杠杆法来测定的。

The optimized formula was gained by orthogonal test as follows: 80 g/L of meta-nitrobenzine sodium sulfonate,37.5 g/L of monoethanolamine,30 g/L of glycine,4.5 g/L of sodium thiosulfate and 0.03 g/L of lauryl sodium sulfate.

1前言尽管电镀技术愈来愈先进,但是出现不合格镀层总是难免的,因此,不合格镀层的退除和重新施镀,对资源的再生与合理应用具有重要意义。

In the preface, an introduction is made of the current situation of researches on Most-Favored-Nation treatment to China and significance of this paper.

前言部分介绍了美国国会与对华最惠国待遇的研究现状和选题的意义。

As the key important part of vehicle, motor systems characteristic was researched by many researchers and scholars.

前言中作者对交流调速技术的发展状况和电动汽车的不同驱动系统作了介绍。

ABSTRACT: By using image processing software, based on the coordinates of clear points in images and the theoretical coordinates of the points in the reference coordinate system, the coordinate relation multinomial of pre-and post-correction control points can be established by means of the digital image correction technique and the coefficient in the multinomial can be sought on the basis of the coordinates of a certain number of control points.

前言 考古绘图一直是考古学研究中不可或缺的重要技术,能够反映考古遗迹的分布状况或者典型器物的多重特征。但是随着考古学研究的深入和对相关技术手段需求的增加,考古绘图技术却始终停留在通过直尺等量取数据、再使用直尺和铅笔绘图的水平上,成图精度很低,周期较长,图形品种单一,远远不能满足现代考古学研究的需要。

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Do you know, i need you to come back

你知道吗,我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。

Chapter Three: Type classification of DE structure in Sino-Tibetan languages.

第三章汉藏语&的&字结构的类型划分。