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Firstly, the paper introduces reform of port management system and discusses the main ideas, development and the effect on the port building of the exist system. Based on that the topic of the paper -excess investment trend (similar function and excess supply of port) and the reasons are discussed.

首先,通过对我国港口管理体制沿革的介绍,引出现阶段港口管理体制改革的主要思路、进程及对港口建设的影响,提出本文研究的主要问题是港口管理体制改革中的过度投资趋势,并把港口发展目标中功能定位重复,港口市场未来的供给超过未来的需求界定为出现港口过度投资趋势,探讨了过度投资趋势出现的主要原因。

This article that focuses on the systematic and in-depth research in the current primal problem about abnormal burst pressure reservoir depress burst pressure has procured following main fruits:1 It forms the method which could obtain massive vertical static state mechanics parameters.2 In a foundation of acquisition of rock mechanics parameters,apply bent lamella that as mechanical model along with characteristic of actual geologic characteristics to analysis curvature for anticlinal strcture, get homologous tectonic stress value throug relation between the curvature and stress and different principal curvature in anticlinal structure,consequently set up laminational stress model for anticline reservoir. The block lamination for existed fracturing date has formed method of setting up mechanical model of lamination terrestrial stress by abtaining the block tectonic stress coefficients which are got by complex utilization test, laboratory test and fracturing date playback.3 Analysesing the main reason which lead to high burst pressure by considering the characteristic of reservoir geology,reservoir,and rock mechanics and reservoir damage,etc.Establishing burst pressure quantitative prediction model which provide gist for depressing construction risk and optimizing construction craft under the condition of open hole completion ,gun-perforated completion and damaged reservoir.4 Provding theoretical basis for interpreting acidification pretreatment which could depress busrt pressure by finding the relation between the influencing factors and rock machanics parameters and analysing the factors that have effect on rock mechanics parameters. Expounding the mechanism of reaction of mixed monomineral and acid from the angle of microcosmic element, evaluating quantitatively acid sensilility of different kinds of mineral effectively, and determing the first-order reaction dynamical equation of each mineral.5 Revealing rock mechanics property chage as a result of acid flooding in different condition by sandstone traumata experiment in different temperatures which combined with rock mechanics triaxial stress experiment.6 Associating damage mechanics with sandstone acidizing, established sandstone damage mechanics model in the foundation of the recognition on the rock mechanics parametric variation which is caused by acid-rock reaction in both macroscopic view and microscopic view ,also demonstrated those processes and quantitative estimated the acid busrt pressure to direct the site operation.

本文针对目前异常破裂压力储层降低破裂压力的主要问题展开较为系统和深入的研究,取得了以下主要成果:1形成了利用测井资料,结合室内岩芯测试结果,获取静动岩石力学参数的相关性特征,从而获得纵向上大量静态力学参数的方法。2在获取了岩石力学参数的此基础上,利用弯曲薄板作为力学模型,结合区块实际地质特征对背斜构造进行曲率分析,通过曲率与应力的关系,利用背斜构造不同部位的主曲率求得相应的构造应力值,从而建立起背斜储层的分层应力模型;对已有压裂资料的区块分层,形成了综合利用测试、室内实验、压裂资料反演获得该区块构造应力系数,建立起分层地应力的力学模型的方法。3综合考虑储层地质、油藏、岩石力学特性和储层伤害等因素,分析造成高破裂压力的主要原因,综合利用岩石力学、弹性力学等知识,建立了裸眼完井、射孔完井条件下以及储层受到伤害后的储层破裂压力定量预测模型,为降低施工风险和优化施工工艺提供了依据。4完成了物性、岩性影响岩石力学参数的因素分析,找出了各影响因素和岩石力学参数之间的关系,为从机理上解释酸化预处理降低破裂压力提供了理论基础;从微观元素的角度阐述了单矿物与酸反应的机理;并在此基础上,有效评价了各种矿物的酸敏感性,定量确定了岩石中各矿物的一级反应动力学方程。5完成了不同温度下的酸液类型、酸液浓度、注酸量等一系列砂岩损伤实验,结合岩石力学三轴应力实验,系统揭示了在不同条件下注酸而引起的岩石力学性质变化。6将损伤力学与砂岩酸化相结合,在宏观、微观两个方面认识酸岩反应引起岩石力学参数变化基础上,建立了砂岩损伤力学模型,并对其进行验证,在此基础上定量计算酸化后的破裂压力,有效指导现场施工

Labor remuneration is the basis of survival for the labor as well as their family members.

劳工问题是现代社会的主要问题,劳工问题的核心是劳动报酬问题。

The results showed that the different mass concentration of HPAM's absorbance decreases slightly when the PH value of the buffer solution is 5.0, but its reproducibility is better;In order to make the absorbance become more stable, the reaction time was identified adding proper quantities of bromine water, sodium formate and starch-cadmium iodide reagent to the solution separately; the mass concentration curve of the HPAM was draw, by means of the straight degree of the curves, the coincidence degree of the straight line about the concentration of every sampling point and so on , it shows that the mixer has good mixed effect compared with the standard curve.

如下是一些主要问题:1)文章的行文格式。文章没有按照一般科技论文的表述方式,如1是引言,2是常用方法,其实这都应该是第一部分引言里应该介绍的,引言中应扼要介绍文章的研究背景、目的,意义,采用的主要方法等。还有3是实验装置,4是实验步骤,应该这些都是第二部分,试验材料与方法。2)文章的内容。文章应主要介绍本研究的具体内容,但是本文没有,如3 实验装置部分,这个721分光光度计的原理与论文内容联系不大,根本没必要介绍,标准曲线的研究应该放在最前面等。3)文章的表述不清。如HPAM是何物,文章一直没有介绍,什么曲线的直线度、浓度与直线的重合度、什么加入溴水后的时间,应该是反应时间,总之表述不清! 4)文章的图表。图标绘制的很难看。如图2,应该纵坐标起始点从0.25开始,这样图形就会美观很多,图3又没有纵坐标标注,还多了一个纵坐标等。5)文章的结论。文章的结论中有些严格来说不是结论,而是实验中的现象与操作注意事项。

At present, there are some main problems in theundergraduate tutorial system, including the problem of the system, the problem ofthe teacher and the problem of the student.

存在的主要问题有:制度本身的问题;导师的问题;学生的问题。

The author discusses the essence of traditional problem of intentionality and how it was transformed into the theory of mental content under the influence of nature science and social science, then analyses the different attitudes towards mental content among intentional realism, eliminative materialism and instrumentalism, finally, gives rise to main problems the theory of mental content concerns about, including the subject of intentionality, relation property of mental content, the naturalization and causality of mental content.

在此,笔者首先介绍了传统意向性问题的内涵及其如何在自然科学、社会科学的影响下转变为心理内容理论的问题,随后分析了意向实在论与取消论、工具主义对心理内容的不同态度,进而引出了心理内容理论所关注的主要问题,即意向性的主体、心理内容的关系性质、心理内容的自然化以及因果性等问题。

From the the law-and-regulation system, the legal position and function of the tendering agency, the market admittance condition, the agent business status, the team scale and distribution, systematically and objectively dissertated the basic development situation of tendering agency for construction projects in our country. Cleared up the main problem existed in this industry by analyzing and neatening. The three outside organization problems is that, the industry management system does not obey, the law and regulations is not enough to perfect and the tenderee has wrong understanding and behavior. The five inside organization problems is that, the agency is short of independence, employee quality is uneven, the quality of agent job is dissatisfied and the internal construction of enterprise lags.

从法规体系、代理机构的法律地位及作用、市场准入条件、代理业务开展情况、从业队伍发展规模及分布状况等方面,比较系统、客观地论述了我国建设工程招标代理行业发展基本情况;通过分析和梳理,基本理清了该行业当前存在的主要问题,即:行业管理体制不顺、法规不够健全、招标人存在认识误区和不规范行为等三类机构外部环境问题,和代理机构缺乏独立性、从业人员素质参差不齐、代理工作质量差强人意、市场行为不规范、内部建设滞后等五类机构自身问题,同时还结合具体招标案例对其中部分问题进行了重点剖析。

The second section analyzes the restraint conditions of establishing zero-coupon bond yield curve in China. In order to analyze the constraint conditions of establishing zero-coupon bond yield curve, we should firstly study the current situation and problems of Chinese bond market because the data estimating zero-coupon bond yield curve mainly come from bond market which can't be separated from the analysis of the development history of bond market. So the main content of this section includes the development history of bond market, the present problems of Chinese bond market and the restraint conditions of establishing zero-coupon bond yield curve in China.

第二节分析中国零息票债券收益率曲线构造的约束条件,由于估计零息票债券收益率曲线所需要的数据主要来自债券市场,这样,要研究零息票债券收益率曲线构造的约束条件,首先必须研究中国债券市场的现状和问题,而这一切又离不开对中国债券市场发展历史的分析,因此本节的内容包括中国债券市场发展的历史沿革、中国债券市场目前存在的主要问题和中国零息票债券收益率曲线构造的约束条件三个部分。

From the study of the main issues in the philosophy of cultural, reveals the theoretical and practical significances.

从以上对文化哲学研究的主要问题的探讨,得出了研究文化哲学主要问题的理论意义和现实意义。

And then the spatial predicates,possibly used in SDMKD from GIS,are analyzed and listed.Subsequently,the formal expression of spatial assoc...

从G IS数据库中挖掘空间关联规则的主要问题是多层、多关系的规则挖掘问题,不同专题图层不同空间对象之间空间谓词的高效计算与存储表达是解决问题的关键;把空间关系非空间化,将连续数据离散化,从而把求解问题转换成布尔型关联规则问题进行讨论,基于此而探讨了一种通过SJI-P表组织空间谓词,然后根据目标对象的概念层级自顶向下、逐层细化的空间关联规则挖掘方法。

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推荐网络例句

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了,但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场,你等着挨绳子吧!

Several theories about reigniting and extinguishing of the arc have been refered.

本文综合考虑了几种电弧重燃和熄灭理论。