背景情况

This article is based on the engineering of Huluding bridge in Nanning provinces, and take the foundation of deep water as research object, introduced the whole process of the engineering ,from perambulation、design to construction.

本论文主要以南宁市葫芦鼎大桥工程项目为背景，以深水基础作为研究对象，从工程的勘查、设计到施工过程进行全面系统的介绍与分析，并根据本工程的具体情况借鉴国内外相关工程项目的实施经验，对设计参数、设备选型及施工工艺等方面作了全面的研究。

In this study, Philodendron andreanum leaves become yellow and green in winter, Ornamental Value reduced as background, Study of foliar fertilizer of nitrogen fertilizer on the growth of new leaves and Ornamental leaves changes in leaf chlorophyll content and Electrolyte leakage.

佘波1，刘瑞霞1，张吉立21山西林业职业技术学院，太原030009；2大庆职业学院黑龙江大庆163255本试验以喜林芋越冬中叶片变黄绿，观赏价值降低为背景，研究叶面喷施氮肥对新生叶片生长以及观赏叶片叶绿素含量变化，电导率变化情况。

Base on above studies, some conclusions were obtained as follows:(1) ore-forming background of the studied ferromanganese crusts are mainly controlled by intensity of Antarctic Bottom Waters and variations of material source;(2) it is confirmed that the ferromanganese crusts are mainly hydrogenetic and their composition are affected by volcanic and continental material simultaneously; there are no obvious phosphatization reconstruction and element reaction occurred in them, so they have important paleoceanological significance;(3) from researches on element occurrence modes in the new-type ferromanganese crusts and the lying sediments, it is proposed that there is no great biological affection on the crusts formation and their composition mainly came from the adsorptive action of the ferromanganese oxides in them;(4) two major types of ore-controlling factors are identified through compilation of ore-controlling factors, which are geological and oceanic factors;(5) considering the long-term variation trends of the crusts composition, combing the U-series and 10Be isotope dating results, it is proposed that the ore-forming processes of ferromanganese crusts in the studied areas can be divided into three major stages (5.6~2.8 Ma, 2.8~2.7 Ma and since 2.7 Ma), and then the activities of AABW since the Late Miocene, changes of input flux coming from volcanic and continental material are confirmed.

通过研究，得出如下结论：(1)研究区铁锰结壳的成矿背景主要受控于南极底流强弱及物源供给的变化；(2)证实铁锰结壳主要为水成成因，同时其物质组成也受一定程度的火山和陆源物质的影响；结壳自形成以来没有遭受到明显的磷酸盐化等成岩后期改造和元素再迁移，具有重要的古海洋学意义；(3)通过新型铁锰结壳及下伏沉积物元素赋存状态的研究，认为生物作用对研究区结壳的形成并没有很大的直接影响，其物质成分主要来自于结壳中铁锰氧化物的吸附作用；(4)在控矿要素的研究中，归纳出了地质与海洋两大类结壳控矿要素；(5)根据结壳成分长周期变化趋势，结合铀系和10Be测年结果，将研究区结壳的形成过程划分为三个主要阶段(5.6~2.8 Ma，2.8~2.7 Ma和2.7 Ma以来)，并确定了晚中新世以来研究区南极底流的活动情况、火山和大陆来源物质输入量的变化。

In chapter three, a study was conducted to establish a HPLC/ESI/MS methodology for simultaneously determining trace monoadenosine and diadenosine monophosphate in a model reaction between N-(O, O-diisopropyl) phosphoryl alanine and adenosine.

对地塞米松磷酸钠的ESI／MS参数进行了优化，探讨了DexP的质谱裂解规律，研究建立了DexP在不受豚鼠外淋巴液背景干扰情况下的HPLC分离分析条件。

The crew shot various locations in New York and the director had each street built in Pinewood Studios with a greenscreen placed at the end so that the New York footage they shot could be dropped into the background giving the illusion of 1937 New York City.

剧组在纽约市很多不同的地方拍摄。导演在松林工作室用绿幕技术建造了纽约的每一条街道，这样电影中的背景看起来就很像是真正的1937年的纽约的情况。

This thesis will introduce background of itself, the purpose of study and situation at the present time. It will show the whole steps of this project, which are system architecture, function logic, popedom control, and database design. It also provides the pivotal technology introduction, including empolder environment, design of WSRP Service and some key codes.

本文将介绍课题背景、研究意义和目前情况，概述系统需求，从系统体系架构、功能逻辑、权限控制、数据库设计来详细阐述系统整体设计和开发过程，然后针对WSRP进行进一步的详细说明，包括开发环境、设计及一些关键的代码实现。

In this paper,the author discusses the nonmodel prediction based upon finding identity theory .

在地质背景相同的环境中，已发现的矿床数较少而难以建立统计模型的情况下，本文讨论了基于求同理论指导下的无模型预测法。

We introduce convex,and in particular semidefinite,optimization methods,duality and complexity theory to shed new light to this relation for the single stock problem, given moments of the prices of the underlying assets,we show that we can find best possible bounds on option prices with general payoff funcations efficiently,either algorithmically(solving a semidefinite optimization problem)or in closed form, conversely,given observable option prices,we provide best possible bounds on moments of the prices of the underlying assets,as well as on the prices of the other options on the same asset by sovling linear optimization problems for options that are affected by multiple stocks either directly(the payoff of the option depends on multiple stocks)or indirectly(we have information on correlations between stock prices),we find on-optimal bounds using convex optimization methods,however,we show that it is NP-hard to find best possible bounds in multiple dimensions,we extend our results to incorporate transactions costs,this paper,in theory and practice can provide a reference to researchers and designers about Chinese financial derivative products,the full text is divided into six chapters as follows: ChapterⅠ:Papers on the background and significance of the subjects on a number of option pricing models as well as their advantages and shortcomings of the model and describes the status of research and writing papers and the main contents of the basic idea.

相应地，给定期权价格，也能够出标的资产瞬时价格的最有可能的最好的界。还有通过解决一个线性最优化问题，根据同一标的资产的其他期权的价格来找到这个期权的界值，对于期权受到多种股票价格直接影响(期权的收益依赖于多种股票)或者间接影响(我们有股票之间联系的有用信息)，如果使用凸规划方法我们就会发现没有最优的界，也能够证明对于多维情形确实是很难找到最优的最有可能的界值，最后将这一结论推广到考虑交易成本的情况。本文在理论和实践上给我国金融衍生产品研究者和设计者提供一定的参考。全文共分为六章，具体安排如下：第一章：阐述论文的选题背景和意义，介绍期权定价的一些模型以及这些模型的优点与缺点，并介绍国内外研究的现状以及论文的写作基本思路与主要内容。

The background of cereal allergy and the development of gluten-free pseudocereal food products in accordiance with this kind of allergy, especially, the nutritional value and properties of grain amaranth seed and quinoa seed were reviewed.

介绍了欧洲人在食用谷物时产生的过敏反应的背景及针对谷物过敏症进行的无面筋食品原料资源—假谷物的开发情况，特别是苋菜籽和昆诺阿藜籽的营养价值和性质。

Background: Fetal and neonatal atrioventricular reentrant tachycardias can be life-threatening but resolve in most cases during the first year of life.

背景：胎儿和新生儿房室折返性心动过速可危及生命，但在大多数情况下生命中第一年这种危险得到解决。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。