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The relations of electrophoresis velocity, electroosmosis velocity and electric dispersion velocity are also investigated with these expressions. The results show that this new model offers a better explanation for peak compression effect on the migration behaviour of charged solute in CEC. The retention time will be shorter by peak compression effect, which is similar to a solvent gradients process. The peak compression effect is not steady, and doesn't appear until the conditions are fitted in some special situation.
基于弛豫理论所建立的基本模型,在考虑溶质在两相中皆有可能发生正、反向迁移的情况下,得到了流出曲线一阶原点矩和二阶中心矩的理论表达式,并通过对溶质在两相中电扩散速率与电泳速率、电渗流速率关系的分析结果证实:溶质在固定相表面的电扩散行为可以使其保留变弱,出峰加快;而这种电扩散导致的超常柱效峰的出现具有不稳定性,只有在多方面因素综合影响匹配的情况下才可能出现。
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Based on the practical application, the composition, integrated utilization and the separation processes by virtue of automatic sedimentation, separation, electrostatic precipitation, centrifugal separation and chemical settling agent etc.
从实际应用的角度出发,介绍了我国催化裂化油浆的组成特点及自然沉降法、过滤分离法、静电分离法、离心分离法、化学沉降助剂法等净化方法,阐述了我国催化裂化油浆的综合利用情况,并针对我国的实际情况提出了一些设想和建议。
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Methods: A retrospective study on the data of 63 cases with CIN treated with hysteroscopic electrosurgery was done at our hospital between January 2004 and June 2007. The clinical-pathological date were analyzed.
回顾性分析2004年1月~2007年6月在我院接受宫腔镜宫颈锥切术63例CIN患者的临床病理资料,记录手术时间、手术出血量,分析手术前、后病理符合情况,术后切缘阳性及再次手术情况。
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Causing the;(3) such as the abhorrent " that is not omited element to have article of around of " of " different meanings," to the theme omits and be not what point to elliptically is to be able to be saved be saved and can omit the condition that does not omit, still have besides cannot save be not saved and cannot the condition that dispense with omits.
造成非省略的因素有"歧义"、"前后文的不一致"等;(3)主题省略和非省略指的是能省则省和能省不省的情况,除此之外还有不能省不省和不能省却省的情况。
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In this thesis, the mathematics model was used to simulatc the alage growth in Lake Taihu; An enzyme-linked immunosorbent assay was used to monitor the spatial and temporal distribution in 2001; The microcystis spp was culturede with scendesmus obliqaus to study the toxin secrete mechanism of the MC from the population competition; The degradation of the MC by the sediment collected from Lake Taihu and one of the submerged mcrophyte Elodea nuttalli were discussed.
本文采用数学模型的方法模拟了太湖藻类的生长情况;应用酶联免疫吸附法监测了2001年MC的时空分布情况;在实验室内进行藻类培养,从种群竞争的角度初步探讨了MC的产毒机理以及太湖底泥和沉水植物对MC的自然降解作用等。
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This article estimates the extreme loss distribution with extreme value theory, estimates the shape parameter with HKKP estimator, which is unbiased to small sample data, selects the right threshold by selecting smallest mean square error of the estimated cumulative distribution function and empirical cumulative distribution function and based on the extreme value theory method, this article estimates the extreme loss distribution and the p-percentile operational loss under certain believe range for Chinese commercial banks, then calculates the operational risk supervise capital.
本文利用极值理论对中国商业银行操作损失极端值分布进行估计,针对尾参数估计的来用传统Hill佑计对小样本数据容易产生偏倚的情况,提出了采用Hill佑计的改进―小样本无偏估计的HKKP佑计来估计操作损失的尾参数,针对由于阈值确定不准确导致结果偏差大的情况,采用最小化估计的累计概率分布与经验累计概率分布平均平方误差的方法确定较精确的阈值,估计出给定置信水平下操作风险损失的分位数,从而使得中国商业银行操作风险监管资本的测定成为可能。
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Simulation in the discussion, respectively, from the rated load, and the empty set three conditions for the system simulation, obtained under the three conditions in response to step through the analysis of the curve, the load that the impact of changes in the system And to improve the system.
在仿真讨论中,分别取额定负载、空载和过载三种情况对系统进行仿真,得出其在三种情况下的阶跃响应,通过对曲线的分析,得出负载的变化对系统的影响,并以此对系统进行了改进。
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It is the contrary, so you may want to load 3.02 psx emulator in certain cases.
但某些情况却相反,所以你或许想要在某些情况下加载3.02PS模拟器
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In default, the following conditions shall be applied: full payment of 30% of the total amount exclusive of tax of the order on placing of the order, and then encashment of the balance on delivery by bill of exchange payable within 30 days of the date of the invoice.
在默认情况下,下列情况应适用於:全额缴纳30 %的总额不包括税的命令,把命令,然后兑现的余额交付汇票支付后30天内的日期发票。没有折扣,应准予在发生预付。
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The principle of high energy gas fracture and the application of it to test sites in oil fields were described.
叙述了高能气体压裂技术作用原理及其在油田的现场应用情况,分析了油层物性对压裂效果的影响,提出了针对不同情况的油层物性选择不同施工工艺,为选井选层提供参
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力