查询词典 analyzing

Finally, the text classifier based on the relevance of index word is devised.(3) After analyzing the foundation of various information retrieval models, the thesis put forward a new information retrieval model, which based on the field theory.

在此基础上通过对核心标引词相关度的加权，实现了基于标引词相关度的文本分类；(3)在分析了各种信息检索模型的基础上，提出了一种新的信息检索模型——基于场论的信息检索模型。

This project cut down the quantity of campaigner of index word and reduces the complexity of automatic indexing in pre-processing.(2) Based on analyzing the relevance of index word, the paper presents a new text categorization model, which is based on the relevance of index term.

这该方案以帕欧理论为依据，减少了自动标引过程中预处理信息量，从而降低了文本标引的复杂度；(2)在对标引词的相关性进行全面分析的基础上，提出了一种新的文本分类的模型——基于标引词相关度的文本分类。

After analyzing the current situation of Indian food security, this paper probed India's three policy instruments used to achieve national food security: producer price support policy, agriculture input subsidy policy and food distribution policy.

本文从分析印度粮食安全的现状入手，重点研究了印度为实现国家粮食安全而采取的三种政策手段：生产者价格支持政策、农业投入补贴政策和粮食分配政策。

Through analyzing the trend of indictor change,the reason that makes the price sustainable growth is presented.

尤其是近两年来，住宅价格快速上涨，个人已经成为我国住宅消费市场的主体。

In the landscape design of experimental village, based on investigating of environment character and analyzing of actuality, through protecting cordillera, water system and vegetation, restoring regional biogeocenose and reducing jamming, safeguard healthy of soil process, through constructing public stage, reforming courtyard and street space, improved living circumstance quality, through assimilating ancestor survival experience, developing tradition, and using local materials built endemic landscape and helped indigene identify with their homestead.

在试点村屯环境景观设计中，重视村屯环境景观特征，针对存在的问题，保护山脉水系和植被、修复被破坏的乡土生境、降低人为干扰以维系生态过程健康，构建公共活动场所、重组院落和街巷空间以改善生活环境质量，汲取先民生存经验、发扬优良传统、就地取材营建乡土景观以帮助当地人重新认同生活的家园。

The preferred dyeing process was confirmed by analyzing and comparing the K/S value of dyed cotton yarn with indigoid dyes.

通过分析比较靛蓝染料染色后棉纱线的K/S值大小，确定较佳的牛仔布靛蓝染浸染色工艺。

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。

I do it by collecting books, papers, journal, interviewing and analyzing inductively.

透过次级资料的收集、访谈、归纳分析等研究方式，完成本论文的撰写。

By analyzing the economic behavior of political agents using the incentive theory in economics, we can find out the reasons for the inefficacy of external incentives.

用经济学激励理论分析政治代理人的经济行为，可以发现官员外在激励有效性不高的原因。

The distribution of the electromagnetic field of an uniformly moving electric dipole is calculated by analyzing the electromagnetic potential of the electric dipole and making use of the covariability of electromagnetic field in different inertial frame under the theory of relativity.

本文通过对电偶极子电磁势的分析和相对论下电磁场在不同惯性系中的协变分布，计算了作匀速直线运动的电偶极子的电场和磁场的空间分布

You can buy sweetened beverages, if that suits you.

你若喜欢的话，可以买些含有糖精的混合饮料。

As many of you are probably aware, Nick and Vanessa were recently faced with an embarrasing sex scandal after naked pictures of the two getting jiggy with it in a hot tub surfaced the net.

正如很多你可能知道，尼克和 Vanessa 最近面临一个尴尬的绯闻事件后，赤裸裸的图片两个越来越jiggy与它在浴缸中的一个热点浮现净。