综述

This paper first points out that there are many hypothetic problems in their debates,and then analyzes the causes that brought about these problems.Noting some methodological biases in the current research,this paper provides new hypotheses that have more explaining power and overcome the above problems.It concludes by discussing t...

本文指出了目前国内经济学家在解释李约瑟之谜上尚存在的问题，对目前为止经济学家和其他领域专家有关李约瑟之谜的解释性假说进行了分类、综述、对比与评论，对各种传统的解释性假说的共同缺陷及其出现这种缺陷的原因进行了初步分析，并在旧有解说方法论偏差的基础上，指出了今后经济学家进一步研究中值得借鉴的一些新假说及其解释力，最后概括了经济学家研究李约瑟之谜的理论和现实意义。

Basing on the ice jam flood of Heilongjiang River and disaster in history records,the ice jam flood situ- ation,hydrological and river way characteristic are proposed in this paper,the cause of ice jam flood and develop- ment of forecasting are analyzed,the ice jam flood disaster and protect methods are introduced.

根据历年冰坝凌汛及灾害调查资料和观测成果，综述了黑龙江上游历年冰坝凌汛发生情况，冰坝河段水文气象特征和河道特性，分析了冰坝成因研究和预报方法的进展，并阐述了冰坝凌汛灾害和防治措施。

The history of the pyrotechnic illuminant researches is summarized and the development and current situation of the theory of the pyrotechnic radiant effects is studied in the introduction.

首先，在绪论中综述了烟火照明剂研究的发展简史，介绍了烟火辐射效应理论的发展和现状。

In this paper, the progress of researches in single-cell imaging analysis in recent years is reviewed.

本文综述了近年来单细胞成像分析方法的研究进展。

This thesis mainly has five chapters. In the first part, I expatiate the mutation and objection of study, at the same time , I sum up the study work of China ancient dream imago .

本文主体部分由5章组成；第1章阐述了研究动机和目的，同时对中国古典诗词中梦意象的研究工作进行了综述。

In this thesis, we have studied a series of new types of imine involved cascade reactions and liquid phase syntheses.

本论文在全面综述了亚胺参与的各种加成反应的基础上，研究了一系列亚胺参与的新型串联反应和液相平行合成方法，主要内容和结果如下：1。

This paper analyses and inherits from all these related areas and addresses the following contents: 1 On the aspect of CVGE Concept, this paper discusses the distinguished features of CVGE, including: Agreement on the final goal among all participants, ability of collaborative perception, interactivity with environments, immersible participation, visualization of collaboration process, multi-media communication channels and behavior intelligence.

论文在综述、借鉴前人研究成果的基础上，主要完成了以下内容： 1从概念层次上，提出了CVGE的特征，即用户总体目标的一致性、用户具有协同感知能力、人与虚拟环境的可交互性、可沉浸式参与、可视化的协同工作过程、多种交互交流方式、行为智能性等。

The phenomenon of adsorption of colloidal particles at interfaces between two immiscible liquids including plane and curved interfaces is reviewed.

综述了胶体颗粒在油水界面上的吸附行为及其应用。

In this paper the advantage of the immobilized enzyme, the classification of immobilization, and the advantage and disadvantage of different methods were summarized.

综述了固定化酶的优越性，酶的固定化的方法分类以及不同方法的优点和缺点。

Methods The original articles about cell immortalization and replicative senescence in recent decade were reviewed.

复习近十年有关细胞永生化与复制衰老现象研究的文章，对SV40介导的细胞永生化及其相关因素进行综述。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐