的问题

PDCA can be an independent circle to solve an independent problem.

PDCA可能是一个独立的环，如解决一个独立的问题，当这个问题解决了，那么这个环也随着消失了；也可能是一个持续改进的过程，即螺旋上升过程，即当这个问题没有解决或已经解决了但又有新的问题发现，又会根据这个问题，进行下一个PDC循环。

A search engine selects one or more search hits from among a plurality of hits, wherein a hit is a reference to a page or a site, based on a user interest, comprising an input module for accepting a query from a user, the query representing an interest of the user; a tracking module for tracking the user's navigation through the plurality of pages, including at least a destination purchase page, the destination purchase page being a page from which the user makes a purchase; a sales module which records associations between purchases and queries where the associations are provided, at least in part by an output of the tracking module; and a search module, which takes as its inputs at least a query and sales associations of that query provided by the sales module, and which outputs one or more search hits based on at least the query and the sales associations of that query.

一搜索引擎从一一击的多数状态中选择一或更多搜索一击，在哪方面一一击是一参考一页的或者一地点把代表一用户的利益问题建立在一用户权益的基础上因为承认一从一个用户问题包括一投入模数；一因为跟踪用户的航行通过页的多数状态，目的地购买页，包含至少一目的地购买页，是一从其用户买东西的页跟踪模数；一记录在购买和问题之间协会其协会部分地至少被一输出提供的销售额模数的跟踪模数；和一把至少那经过销售额模数提供问题的一问题和销售额协会视为它的投入，和哪一个使出，把一或更多搜索一击建立在至少那问题的问题和销售额协会的基础上的搜索模数。

Firstly, according to the difficulties in the optimization of chemical engineering and the intrinsic disadvantage of deterministic optimization algorithms, this work analyzed the importance and advantage of stochastic algorithms, and proposed some important aspects in research on them. Secondly, genetic algorithm was applied to two problems of data driven modeling, one of which was combination problem, the other was mixed integer nonlinear programming. Thirdly, systemic investigations were made on the basic structure, dynamic behavior and modifications of particle swarm optimization. Lastly, two kinds of proposed PSO algorithms were applied on calculation of phase equilibrium, which is nonconvex optimization.

本文首先根据化工优化中存在的困难和确定性优化算法内在的缺点，分析了随机优化算法的重要性，并提出研究随机优化算法应注意的问题；其次，将遗传算法应用于两个数据驱动建模问题，一为组合优化问题，一为混合整数优化问题；再次，从粒子群优化算法的基本结构、运动行为、改进方法做了系统的研究：最后，将提出的两种改进粒子群优化算法应用于相平衡计算问题，为非凸全局优化问题。

From the practice of teaching, this paper explores the problems on poem teaching. Such as: Saying any thing all from books,grasping poem impractically and doctrinally,lacking the direction of methods on enjoying a poem,no training about writing,the fourth problem is only put forward. This paper analyses the causes and gives the tactics on the problems of the first three.

本文从教学实际出发，探讨了诗歌鉴赏教学中"吊书袋"的问题、整体把握的空洞与教条的问题、欣赏方法的指导的欠缺问题、诗歌写作尝试的空缺问题，对前三个问题分析了其产生的原因以及应对策略，对第四个问题只是提出而已。

The problems the traditional translation study explored are concentrated on the following aspects: traditional criteria, the argument between "metaphrase" and "paraphrase", the problem of translatability and untranslatability, and the style in literary translation.

传统的翻译研究探讨的问题往往集中在以下一些问题上：翻译的标准问题，翻译的"直译"与"意译"问题，翻译的可译性和不可译性问题，文学翻译的风格论问题等。

Carleman不等式及其在最优控制问题中的应用.Optimal control theory of distributed parameter systems mainly includes: Pontryagin's maximum principle; controllability; Hamilton-Jacobi equation (i.e., dynamic programming equation); time optimal control, etc.In this dissertation, we establish Pontryagin's maximum principle of optimal control problems governed by some nonlinear differential equations (parabolic differential equations, elliptic differential equations and 3-dimensional Navier-Stokes equations), which in particular could have local solut...

在这篇博士论文中，我们建立了非线性微分方程(包括抛物型微分方程，椭圆型微分方程以及3维Navier-Stokes方程)最优控制问题的庞特里雅金最大值原理，特别地，这些方程可能只有局部解或存在多解(我们称这样的系统为非适定系统，相应的最优控制问题为非适定最优控制问题)，以及适定的非线性发展方程最优控制问题的庞特里雅金最大值原理；我们研究了phase-field系统的时间最优控制问题以及Boussinesq系统的局部内可控性。

With the practice and research on the grade-determination of the cultivated land , the paper, based on the concept and purpose of the grade-determination of the cultivated land , has analysed the problems existing in the course of practice and summarized the reasons about " the rules of the grade-determination of farming land " which the Ministry of Land and Natural Resources had issued , including the issues about dependence between grading index of cultivated land and utilizing index ,or dependence between grading index of cultivated land and natural index , lack of the nationwide comparativity of the achievement on grade-determination of the cultivated land ,the sudden change indexes between the paddy field and its adjoint nonirrigated farmland, the representativeness of appointed crop and so on.

通过耕地分等的实践和研究，文章从耕地分等的内涵和目的出发，对国土资源部颁布的《农用地分等定级规程》在实践过程中所存在的问题及其原因进行了归纳和分析，其中包括耕地等指数与自然等指数、利用等指数的相关性问题，耕地分等成果在全国范围内缺乏可比性问题，相邻地块间水田和旱地的等指数出现突变问题，指定作物的代表性问题以及熟制问题等。

Results Sources of work stress of psychiatric nurses were problems of resource and environment, profession and work , workload and worktime allocation, nursing patients and management and interpersonal relationships in turn.

结果 精神科护士工作压力源依次为：工作环境及资源方面的问题；护理专业及工作方面的问题；工作量及时间分配问题；病人护理方面的问题；管理及人际关系方面的问题。

A second problem in this family is the "problem of Tib and Tibbles."

这些问题中有这个问题&Tib和Tibbles的问题&。

At present , there are two embarrassments in the treatment disposal of refuse .

目前，我国城市垃圾处理主要存在着两方面的问题：即资金问题和技术问题。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。