Through the research on the history and actuality of the quaternion and the quaternion matrix theory , we have found that , from 1843, when English mathematician W.
通过对四元数和四元数矩阵理论的历史与现状的考查，我们发现，从1843年英国数学家W 。
Therefore, research on the problem not only has the very strong actuality, but also has the important theory meaning.
因此，对历史人口问题的研究不仅具有很强的现实性，还有重要的理论意义。
This paper sum up the scientific signification, research actuality and perspective of its application of numerical simulation on ventilation of the solar chimney.
简要介绍了数值模拟技术在太阳能烟囱通风效应研究的科学意义、研究现状和应用前景作了分析总结。
Under this background, it has a great importance in theory and actuality to research on coordination between society-economy and eco-environment in land use.
在这种大背景下，对土地利用中社会经济与生态环境协调状况的研究具有重要的理论与现实意义。
The conception, classify, functions and actuality of research on resistant starch home and abroad are introduced. The future of using resistant starch with new technology is prospected.
对抗性淀粉概念、分类、功能特性、国内外对抗性淀粉的研究现状以及最新研究进展等进行了综述，并对抗性淀粉制备过程中结合高新技术的发展前景做出了展望。
Analysis of the actuality of the shoe last design and the research of foot pressure at home and abroad, the customized shoe last design is proposed based on foot pressure distribution.
在了解和分析国内外关于足部压力研究以及鞋楦设计现状的基础上，提出了一种基于足部压力分布的个性化鞋楦设计方法。
Based on the research of video surveillance system's history actuality and trend, thesis complete the research and design of gather subsystem of multimedia digital video surveillance.
基于对视频监控系统的历史、现状和发展趋势的研究，本论文完成了多媒体数字视频监控采集子系统的研究与设计。
The electrochemistry actuality of research on vitamin medicine of folic acid is reviewed with 50 references, to date 2002.
引用了50篇参考文献对叶酸的电化学研究现状进行了全面的综述。
Firstly, this thesis explains the actuality and significance of research on rural society intermedium organization, in order to clarify the motivation of writing.
本文首先说明了农村社会中介组织的研究现状和研究意义，阐明本文的写作动机；
The paper summarizes research actuality of on-off operation of small refrigeration system, and explains and analyzes the whole on-off process and its influence.
本文综述了小型制冷系统启停过程的研究现状，详细说明和分析了制冷系统整个启停过程及由此造成的影响。
The thesis consists of two parts: the actuality analysis of the traffic trip generation and the research on vehicle trip generation.
论文主要分为两部分内容：城市交通出行生成现状分析和机动车出行生成研究。
Based on analyzing the disadvantages of tradition layered network architecture, the research actuality related to the new generation of network architecture was introduced.
针对传统分层网络体系结构所存在的弊端进行了分析，在此基础上介绍了新一代网络体系结构方面的研究现状。
In this paper, the research actuality of the methods and technology of facial expression animation is commented on. And the more work that needs to be solved is put forward.
本文评述了国内外人脸表情动画方法和技术研究现状，提出了进一步需要解决的问题。
Research actuality and trend on the advanced detecting technology for underground hazards geological body have been summarized in this paper.
总结了地下灾害地质体超前探测技术的研究现状和趋势；
Based on the actuality of worm gear lubricant, some research topics that are worth thinking are also brought forward.
并在蜗轮蜗杆油现状的基础上提出了值得思索的几个问题。
After the research on the actuality and problem of our country's lakes and reservoirs, the research fruit of lake hydrodynamic numerical simulation from external has been introduced.
本文从研究我国湖泊水库环境现状及其问题成因入手，介绍了湖库的水动力学特征及其数值模拟，对当前湖泊水动力数值模拟的主要研究成果进行了简要的说明。
With the statistic analysis, key words analysis and quotation analysis, the paper reflected the international research actuality on interlibrary loan and document delivery.
通过对文献类型、活跃作者、权威机构的统计计量分析，以及关键词词频分析、引文分析，来反映国外图书馆馆际互借和文献传递领域近十年的研究现状。
This article aims to generalize the actuality of the research on the biomechanical mechanism that the primary Angle closure glaucoma.
本文主要就闭角型青光眼相关的生物力学研究现状做一简要综述。
The research of smart home based on the wireless sensor network is done in view of the speciality of intelligent home and the actuality of intelligent home network.
目的研究基于无线传感器网络技术的智能家居网络并构建其网络模型。
Research actuality of traditional Chinese medicine on treatment of recurrent aphthous ulcer;
目的探讨中医中药对家兔神经损伤性尿潴留的作用。
Research actuality of traditional Chinese medicine on treatment of recurrent aphthous ulcer;
目的探讨中医中药对家兔神经损伤性尿潴留的作用。
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