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It is with the aim to provide them with a thorough and complete explanation of the heterology of the two passive constructions that we made this contrastive study, and we also hope that it will be helpful to the translators and foreign language teachers as well.

正是由于这个原因,我们将汉英这两种被动结构从根本上进行对比分析,从语言和思维的宏观角度解释造成关于两种被动结构的异质性的直接原因,希望可以为外语学习者提供一个全面而详细的解释,同时也希望可以有助于翻译者和从事外语教学的教师对汉英被动结构乃至汉英两种语言在句法层面的差异的全面认识。

If we do some reseachon differs from forms,style and technologe in every age,it may help us understandsculpture on history insight and give some revelations about sculpture indite.

对雕塑创作在不同时期、不同的思维方式下材料的使用方式的研究,可以帮助我们站在历史和理论的高度进行思维性判断和分析,可以让我们有更清晰的认识和更全面的判断,对雕塑创作提供一些有意义的启示。

ABSTRACT Aiming at problems of trans-vector controller in a vehicle-carried induction motor such as variable rotor and stator resistance following motor temperature, and their inductance varying with flux saturation degrees. Firstly, CSI and VSI are introduced, for CSI, it can hold the advantages both FOC and DTC using stator flux directional, PI parameter and simulation are also introduced. Secondly, equations of IM in the synchronous rotary frame and its static counterpart, as figuring in the saturation condition of magnetic field, are dealt in this paper and the simulation results are presented. Thereafter, the parameter designing of PI trans-vector controller is processed, which features the non-linear model. In practical realization, as neglecting the dynamical change of motor inductance, this paper employs online modification of inductance parameters, according to the flux saturation, then transforms the non-linear equations into linear ones, and so compacts the structure of controller. Thirdly, in view of the maximum torque output is extraordinary requisite when Electrical Vehicle start up, accelerate, and overtake, this paper issues the maximum torque when both inverter and battery capacity is corporeally definite. Fourthly, on-line differentiating and analyzing both rotor's time constants and its flux by using the expanding order reduction and discrete Kalman filter equation are fathomed, in order to realize high-performance trans-vector algorithm, and also the simulation results are presented. Fifthly, the close-loop regenerative brake system, when the EV's torque is set constant, is deduced; at the same time, unification of electric drive model and brake model is executed. Combined with maximum charge current demands, the mathematical model for online yielding torque as a demand.

本论文针对车载异步电机在矢量控制器所遇到的问题:定转子电阻随温度变化及随电机饱和程度变化的转子电感及定子电感而影响电机调速性能提出一套完整的解决方案:分析了电流型逆变器和电压型逆变器在实现矢量控制时控制器参数的计算,分析出对于电流型逆变器在采用定子磁场定向时,其性能同时具有矢量控制和直接转矩控制两者的优势,并对电压型逆变器在转子磁场定向下的模型进行了仿真研究;建立异步电机非线性模型,推导出考虑磁饱和时异步电机在同步旋转坐标系及静止坐标系下的方程,并做出了仿真结果,建立异步电机在非线性模型下的矢量控制调节器的PI参数设计,在实际应用中,若忽略电机电感的动态变化,可以根据当前的磁路饱和状态而在线修正电感参数,从而将非线性方程线性化,降低控制器的复杂度;考虑到电动汽车在起动和加速超车时需要电机有最大转矩输出,本文讨论在逆变器容量一定和电池供电能力有限的情况下电机最大转矩输出问题;推导了异步电机扩展降阶、离散卡尔曼滤波方程在线辨识转子时间常数和转子磁通,用于实现高性能的矢量控制算法,并给出了仿真结果;推导出了电动汽车恒转矩给定的闭环回馈制动系统,实现了电动控制模型和制动模型的统一,而且结合铅酸电池最大充电电流的要求,为制动转矩在线给定建立了数学模型;设计了基于双DSP系统的高性能矢量控制器软硬件框图,并以大量实验数据说明矢量控制在电动汽车应用的实际应用状况。

In Chapter Five, the final chapter, the author concludes that, the obligee can choose theright of claim most favorable to him under general circumstances, or choose both of theclaims available to him under certain special circumstances; if the right of claims aretransferred, the inflicter shall demur with the existed right to claim indemnity, no matterwho lodge a complaint, either the transferor or the transferee; when the law has a specialprovision or the parties achieves a fairly special agreement within the limit of law, thespecial provision or agreement shall be obeyed.

论文的第五部分,也就是最后一部分,在分析前人的理论和实践的优劣的基础上,在分析解决问题的出发点的基础上以及在借鉴前人的成果的基础上,作者最后提出自己对该问题的解决方法,即:一般竞合的情况下权利人可任意主张其中一项对自己最为有利的请求权;特殊情况下受害人可同时采用双重请求权;竞合情况下若出现请求权转让,无论是转让人还是受让人依请求权提起诉讼,加害人都可以业已存在的对其要求损害赔偿的请求权进行抗辩;法律有特别规定或当事人在法律允许的范围内有特别的公平约定时,应依特别规定或特别约定。2

To improve the venture supervisory system of our country and to enhance the competition level of the commercial bank is the only way to make the commercial bank a better challenge for the whole opening of our commercial bank. Also, it is the only way for commercial bank to grow up rapidly in the condition of opening and to inosculate in international market.

我国的商业银行风险监管体系包括静态监管体系和动态监管体系,通过分析动态监管体系和静态监管体系之间的关系,可以得出,静态监管条目下的法律体系、组织体系和技术体系可以代表整个风险监管体系的内容,该风险监管体系要对我国商业银行面临的信用风险、市场风险、操作风险等进行监管。

Combining the experimental results and theoretical analysis, the following work has been accomplished.(1) Reasons of the decrease of interelectrode capacitance and the increase of discharge gap caused by the powder suspended in dielectric fluid are explained. And the mechanism that surface quality of workpiece improved by powder-mixed EDM is analyzed from this viewpoint.(2) The variation regularity of the percentage of silicon on the machined surface of workpiece has been summarized according to the experiment results when silicon powder was added into the working fluid. The entropy is introduced to explain the reasons for this variation regularity by thermodynamics.(3) The dimensional accuracy is greatly influenced by the overcut resulting from discharge gap and electrode wear in practice application. Empirical formulas for the overcut in EDM and powder-mixed EDM are established based on the experimental results using the ternary linear regressive method in this paper.(4) The influence of main factors on the machined surface characteristics has been evaluated based on the orthogonal experimental design method.

通过一系列普通电火花加工与混粉电火花加工的对比实验,运用工艺实验和理论分析相结合的方法,重点做了以下工作:(1)探讨了粉末颗粒导致极间电容减小、放电间隙增大的原因,并从这个角度解释了混粉电火花加工可以改善工件表面质量的机理;(2)以混合硅粉的电火花加工为例,实验得出峰值电流和脉冲宽度对加工表面层成分中硅元素含量的影响规律,并引入熵的概念从热力学的角度对硅元素含量变化的原因寻找了理论依据;(3)在实际加工中,由于粉末的加入使放电间隙变大,这使得混粉电火花加工的尺寸精度难以控制,本文利用三元线性回归的方法,在实验数据的基础上,建立了两种电火花加工过切量的计算公式;(4)将正交试验法应用于混粉电火花加工实验研究,并通过对实验指标极差的直观分析,得出各电参数对加工指标影响的敏感程度。

The prerequisite of the correct use of karnaugh map is to full in the map with the given logic function correctly. Karnaugh map can be used to transform logic function into various simplest expressions and check the race and hazard of logic function. It has a wider range of important applications in the analysis and design of combinational logic circuit and sequential logic circuit.

正确运用卡诺图的前提是把给定的逻辑函数正确填图,可以利用卡诺图将逻辑函数化简为各种最简表达式;可以用来检查逻辑函数的竞争冒险等;在组合逻辑电路和时序逻辑电路的分析与设计中更有广泛的重要应用。

According to the analysis of thermogenic curves, shortened lag phase of bacteria growth, increased growth rate constant and maximum heat power were observed in the presence of Pr(superscript 3+) in low concentration and the results indicated that the growth of E. coli was promoted.

从生成的热谱图分析可以看出,低剂量的稀土离子Pr(上标 3+)的存在可以缩短细菌的停滞期,增加生长速率常数和最大放热功率,刺激大肠杆菌的生长。

Through these research, we have two main conclusions:CRM is the effective method of enterprises management the customers, and the data mining is the powerful tool of derived latten and value knowledge from mass data, and the effective union of them may provide the powerful support for the telecom company 's scientific policy-making and enhance the core competitive power of telecom company

通过实证分析,得出了两个主要结论:(1)CRM是电信企业进行客户管理的有效手段,数据挖掘则是可以从大量数据中抽取出潜在的、有价值信息和知识的强有力的工具。两者有效的结合可以为电信企业经营、科学决策提供有力支持,从而提高电信企业的核心竞争力。

The study wanted to make clear the index of freeze injury to Lichi. Low temperature data of Fujian province recent years and now, information about freeze injury of lichi in survey and literature were gathered, refering to photo and corresponding low temperature data about five county in winter in 1999 that provided by guangxi research institute of meteorological disaster mitigation; by statistic methods dealing with above information gave the result on the extreme low temperature data gathering by thermometer screen and the freeze injury grade of lichi; correlation analysis on data of freeze injury and the extreme low temperature indicated that the temperature of no freeze injury and slight freeze injury and moderate freeze injury and serious freeze injury and most serious freeze injury is respectively -0.3℃ and -1.9℃ and -3.1℃ and -3.8℃ and -4.1℃; Difference of teperature between every freeze injury grade of lichi turned to disappear when grade increased.

为了弄清给荔枝树造成损害程度低温指标,收集了福建省近几年冬季考察的低温资料、荔枝树低温冻害调查资料和有关参考文献中记载的荔枝树冻害资料、同期的低温资料,参考广西壮族自治区气象减灾研究所1999—2000冬季5个县荔枝树冻害的照片资料和相对应的低温资料;经统计处理整理成同时同地荔枝树的冻害级别与百叶箱中的最低气温资料;据荔枝树的冻害资料和最低气温资料进行相关统计分析,经相关分析表明:它们可以用一元二次方程进行拟合;荔枝树的无冻害、轻冻害、中冻害、重冻害、严重冻害的最低气温分别为-0.3℃、-1.9℃、-3.1℃、-3.8℃、-4.1℃;荔枝树各个冻害级别之间温差随着冻害级别的提高而缩小。

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推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。