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This article through the research postal service market present situation, points out its existence the main question.

本文通过研究邮政业务的市场现状，指出其存在的主要问题。

Therefore,a series studies of ice-pier vibration are performed from different aspects in this paper.The main work of this his thesis is summarized as follows:(1) Ice response spectra is proposed based on the idea of a seismic response spectra analysis of str .. uctures.Firstly,ice response spectra on the basis of power spectra density function is established;Secondly,based on the assumption of quadratic parabolic interpolation method,the nonlinear interpolation analysis method of ice response spectra is studied from both theoretical and practical points of view,and the successive computation formulas including ice displacement,velocity and acceleration response spectrum are deduced by Duhamel integral.Furthermore,to analyze the effectivity and applicability of the method, the real temporal curves of ice pressure are used to be studied.The results show that the presented method is more convenient and accurate to study the structural response induced by ice force,also it can be effectively applied in the design of ice resistance.

鉴于此，本文针对冰激桥墩结构振动问题从不同方面展开了一系列与之相关的研究，主要研究内容如下：(1)根据结构抗震反应分析思想提出了冰振反应谱，首先建立了基于功率谱密度函数的冰振反应谱；其次借鉴地震反应谱内插法的思想从理论和实际观点出发，假定在等距离微小时间间隔内冰荷载按二次抛物线规律变化，由Duhamel积分推导出冰振位移、速度以及加速度反应谱的一系列连锁公式，建立了基于非线性内插法的冰振反应谱，并利用实际冰压力时程曲线进行了冰振反应谱数值分析，为以后冰激结构振动的研究提供一种方便、简捷、精确的分析方法，也能够将其有效地应用到结构的抗冰计算中。

In this article, the author compares and analyzes three kind of main calculation formulas of the square grid quadrilateral prismoid field leveling earth volume , and provides a formula to calculate directly total excavation and filling earth volume according to construction altitudes of angular points of square grids.

对场地平整土方量方格网四方棱柱体法的3类主要计算公式进行了对比分析，提出了根据方格角点施工高度直接计算场地总挖、填土方量的计算公式。

The role of human reactions (intervening historical contingencies) points out that the main purpose behind predictions was not prognostication but activation.

人回应的角色指出，在预言之后的主要目的不是预测未来，而是激励。

On the base of analysis, this paper expatiates the birth and development of the sustainable development theory, its basic conception and meanings. It summarizes its basic principles and explains the relationship between the government and sustainable development. Then it points it out that government is the main propellent of sustainable development.

在以上分析的基础上，本文详尽的阐述了可持续发展理论的产生与发展，其基本概念与内涵，归纳出了可持续发展的基本原则，并结合政府的主要公共职能说明了政府与可持续发展战略的关系，指出政府在可持续发展战略实施过程中处于主导地位，是可持续发展战略的主要推动者。

At the same time, the author points out main problems and makes prospects for them.

并指出了存在的主要问题和亟待研究的问题的展望。

In their main outlines, these two great sects have retained the characteristics of the Purana period, but differences of view on minor points have lead to a multiplication of schismatic divisions, especially among Vishnu-worshipers.

在他们的主要轮廓，这两个伟大的教派保留的特点Purana时期，但意见分歧小点导致的分裂增殖分裂，尤其是毗湿奴，朝拜。

Bakhtin points out that the main characteristic of Rabelais writhing is grotesque realism decided by culture of folk humor .

巴赫金认为拉伯雷的创作是一种怪诞的现实主义，其特征是极度的夸张、降格和双重性，而这些特征是源于民间诙谐文化，只有深入了解民间诙谐文化的形式、特征，尤其是它的深层本质，才能对拉伯雷的创作，对怪诞现实主义有更深一层的认识。

The main causes of the vibration in pipeline system are in two respects : The first is the vibrant force of the medium acted on pipeline system,i.e.exciting signal,such as the vibrant force caused by the gas flow at the compressor ′ s inlet and outlet and at the ramified and nodel points as well as the action of pig passing through pipeline bridge,etc.;The second is the response to the exciting signal,which is relating to the characteristics of the pipeline system,i.e.the rigidity,support,quality and equipments of the system besides the waveform of the exciting signal.

管道系统振动的原因主要有两方面，一是介质对管道系统产生的振动力，即激发信号，如气流在压缩机进、出口，分支节点部位产生的振动力，清管器通过管桥时对它的作用等；另一方面是对激发信号的响应，其响应除了和激发信号的波形有关外，还和管道系统本身的特征，即系统的刚度及支撑，质量及其配置等情况有关。

The reasons of Cold-rolled strip sticking during cover annealing are analysed, it points out that the reciprocal transformation of Fe and iron oxide during annealing is the main reason, and prevention measure is put forward.

对冷轧带钢在罩式退火过程中产生局部粘结的原因进行了分析，指出在退火过程中，铁和氧化铁的相互转化是产生粘结的主要原因，并提出预防措施。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。