概念作用的

Several combining with middle school mathematics teaching Abstract: combining the number is the number of more abstract corresponding relation and the geometrical graph, combine to solve the problem of abstract concepts to materialize and intuitive, intuitive, abstraction, and systematic problem to reduce the difficulty of the problem, and to help students thinking transformation and training students' ability.

数形结合与中学数学教学摘要：数形结合就是把较为抽象的数量关系和与其对应的几何图形相互结合起来解决问题，使抽象的概念直观化、具体化，使直观的问题系统化、抽象化，从而达到降低难题的难度、帮助学生思维转换、培养学生能力的作用。

The network security is an affected area very widespread question, the topic research content: The network security rank, the data encryption technology, the firewall technology concept, the function, introduced the network security faces main threat as well as question countermeasure, and through the example some company network analysis situs chart from the analysis network security movement environment explained the example plan as well as supplements four safe disposition.

网络安全性是一个涉及面很广泛的问题，课题研究的内容：网络安全级别、数据加密技术、防火墙技术的概念、作用，介绍了网络安全面临的主要威胁以及问题的对策，并且通过实例某公司网络拓扑图从分析网络安全的运行环境来说明实例方案以及补充四点安全的配置。

The main purpose of this project was to distinguish self-worth of domains of self-evaluation and self-worth of processes of self-evaluation, and verify the bidimensional model of self-worth in a fully Jamesian perspective, and construct a concept system on self-worth, and explore the function of self-worth.

本论文的目的是区分自我评价领域的自我价值感和自我评价过程的自我价值感，确认自我价值感的二维模型，构建自我价值感的概念体系和探索自我价值感的作用机制。

Firstly, the author starts with the basic theories of limitation of liability for maritime claims, giving descriptions of the concept of limitation of liability for maritime claims, its generation and development, its basic content and its connection with the unit limitation of liability. Basing on which and by comparing with the principle of full compensation of the traditional system of liability for civil damages, the author analyzes the unique principle of limited compensation of the system of limitation of liability for maritime claims and acknowledges the positive role such principle takes in the carriage by sea, international trade, marine insurance and salvage at sea.

首先，笔者从海事赔偿责任限制的基本理论入手，对海事赔偿责任限制的概念、形成和发展、基本内容及其与单位赔偿责任限制的关系进行了阐述；并在此基础上，通过对比传统民事损害赔偿制度的全面赔偿原则，分析了海事赔偿责任限制所特有的限制赔偿原则，并肯定了这一特点对海上运输、国际贸易、海上保险、海上救助的积极作用。

To twist this kind of bad trend must hold human resource systematically from the basic concept of human resource form, importance and its role in economic development, know strategic position and the meaning of the development of human resource in detail, for new century, what the enterprise human resource of our country develop tendency, have clearheaded knowledge.

为扭转这种不良倾向必须从人力资源的基本概念出发，系统地把握人力资源的构成、重要性及其在经济发展中的作用，详细了解人力资源开发的含义和战略地位，要对新世纪我国企业人力资源开发的发展趋势有个清醒的认识。

Concept and state of the art of design methods of plate——column structure and plate——column and shearwall structure are bri......

基于板-柱结构及板柱-剪力墙结构的概念和设计方法现状，从风载和常遇地震作用下结构的顶点侧移，静力弹塑性分析结果，节点抗震性能以及结构振型分析等几个方面，评价了板-柱结构的抗震性能，并对板柱-剪力墙结构的抗震性能进行了初步探讨。

This article through to the comprehensive budget management concept, the function, the management pattern, the management flow carries on the elaboration, moves in the comprehensive budget management to DanDong the organization system, comprehensively budget the management seven flows to carry on the thorough careful analysis, and moved the standard cost and the cost range pole management on DanDong which at present uses has conducted the research.

本文通过对全面预算管理的概念、作用、管理模式、管理流程进行阐述，对丹东移动公司全面预算管理中的组织体系，全面预算管理的流程进行了深入细致的分析，并就丹东移动公司目前采用的标准成本和成本标杆管理进行了研究。

Through the analysis of the loss and threshold characteristics of a laser diode, the threshold current density of LD with external feedback is calculated, according to the theory of multi-beam interference and the definition of equivalent reflection factor.

通过对半导体激光器的损耗和阈值电流特性的分析，引入等效反射系数的概念，根据多光束干涉的原理，导出了在外腔反馈作用下LD的阈值电流公式。

Theoretical classes focus on the conceptions involving cell biology, the ultrastructures, chemical composition and function of organelles in cell, the mechanisms of biochemical action and the research methods as well.

理论课教学内容重点讲授细胞生物学有关的基本概念、细胞内各种机构及细胞器的亚显微结构、化学组成和功能作用，介绍重要生化活动的分子机制及本学科的主要研究方法。

Thompsonplays an important role in the study of Heegaard splittings.

Thompson(见[53])给出的thin position的概念在Heegaard分解的研究中起着重要的作用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。