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Trigger-based Animation employs an object as a trigger to control a series of animations and a message can be controlled by more than one triggers which helps performers to show digital contexts and attract audiences' attention. The learner's attention could be directed to learning by Trigger-based Animations. Moreover, the teacher-student interaction could be enhanced by proper teaching materials design in the Trigger-based Animation environment.

激发式动态呈现是利用一个物件当激发器控制一连串的动画，同时一个讯息可以被一个以上的触发器控制，协助教学者适当地呈现讯息，引导学习者的注意力，进行认知学习，并透过教材设计达到师生互动。

First it concludes elementary methods for product modeling such as feature recognition, feature-based design and feature mapping. Then it probes into the mechanism of constraint-based feature parametric modeling, representation of feature parametric model and methods for solving constraint in details. At the end it proposes a feature-based modeling system that makes good use of resources and synthesizes many feature modeling methods, and analyses the development of prototype system oriented to actual application.

首先全面归纳了基本的基于特征的产品建模方法，包括特征识别、基于特征设计和特征映射方法，然后对基于约束的特征参数化建模、特征参数化模型的表达和定义方法以及约束求解方法进行了深入研究，最后提出了一个充分利用现有资源，特征识别、基于特征设计和特征映射共用的特征建模系统，并探讨了面向实际应用的原型系统的开发技术。

PECH based PUs showed higher phase separation than that of PPG base PUs owing to that the -Cl groups in PECH reduced the flexibility of molecule chain and hindered the formation of hydrogen bonds between ether groups in soft segments and -NH groups in hard segments. As a result, PECH based PUs have lower free volume content, diffusion coefficient and equilibrium adsorption of CO〓, benzene and ethanol through them than through PPG based PUs.

聚环氧氯丙烷醚聚氨酯的氯基降低了链段柔性，妨碍了软段中醚基与硬段中氨基的氢键作用，导致其相分离程度较聚环氧丙烷醚聚氨酯大，并使CO〓、苯和乙醇蒸汽在聚环氧氯丙烷醚聚氨酯中的渗透系数和扩散系数较聚环氧丙烷醚聚氨酯小，而偏离费克扩散的程度大。

As the communication net work of which it is based is changing from circuit switching based ISDN and DDN to packet switching based IP network, the object market will change from large cooperation and government to little work group and personal desktop conference, and finally to family, the function has developed from the simple Video Conference to integrated services such as remote learning system, remote monitoring system and remote medical system etc, video conference will be in a new development generation.

顺应三网合一的发展趋势，由于交互式多媒体通信所依附的传输网络基础，由电路交换式的ISDN和专线网络向分组交换式的IP网络过渡，针对的市场目标将由大型公司、政府机构的会议室向小型化的工作组会议室、个人化的桌面延伸，并最终发展到家庭，功能也已由原先单纯的电视会议功能发展成远程教学系统、远程监控系统、远程医疗系统等多方面的综合业务。

The products can be divided into refractory materials for steel plants,for building enterprises,for china industry,for electricity,for chemical works and for some other industries according to their usages.Our products contain High alumina based,corundum brick based,clay based series;products with low wriggling series;alumina-magnesia series;magnesite-chrome series;Alkali-resistance bricks;Acid-resistance bricks;semi-sillimanite bricks;mullite;sillimanite;andulusite;lyanite series;sillimanite quality refractory products and unshaped refractory materials.

公司产品按用途分为：钢铁企业用耐火材料，有色金属行业用耐火材料，建材、陶瓷行业用耐火材料，电力、化工行业用耐火材料，其它行业用耐火材料；按产品种类分为：高铝、刚玉质系列产品，粘土质系列产品，低蠕变系列产品，铝镁质系列产品，镁铬系列产品，耐酸、耐碱、半硅砖系列产品，莫来石、硅线石、红柱石、蓝晶石系列产品，硅质耐火材料系列产品，不定形耐火材料系列。

The block-based fractal image compression method has a low compression ratio, so simple region-based fractal image compression is introduced, then the competitive region-based fractal image compression method is presented. The experimental results show that the compression ratio is effectively improved at a similar PSNR value.

由于基于块的分形图像压缩方法的压缩比不高，对此进行改进，先介绍简单的基于区域的分形图像压缩，然后提出基于区域的竞争分形图像压缩算法，并进行实验，实验结果表明，该方法在保持一定的信噪比的情况下，有效的提高了压缩比。

In this study, we designed and synthesized four glycan-based paclitaxel prodrugs. Compound 1 and 2 are glucose-based prodrugs; and 3 and 4 are glucuronic acid-based ones.

在这篇论文中，我们设计合成了四种分别以葡萄糖和葡萄糖醛酸做为传输载体的前驱药物。

In this paper, the general situation of the overseas applications of micro fuel cells is introduced in detail. The feasibility of micro fuel cells fabrication using MEMS technology and characteristics of different types of MEMS-based micro fuel cells are briefly discussed. Combining with the critical components including the monopolar plate and membrane electrode assembly, the latest research progress of MEMS-based micro fuel cells are also summarized systematically. Finally, the existing problems and development trend are analyzed, and the urgent demand for developing MEMS-based micro fuel cells in our country is demonstrated.

本文详细介绍了国外微型燃料电池的应用概况，简要论述了将MEMS技术应用于微型燃料电池制作的可行性以及MEMS微型燃料电池的类型特点，并结合关键组件极板和膜电极，系统地总结了近几年来MEMS微型燃料电池的研究进展和成果，最后分析了目前存在的问题和发展趋势以及我国大力发展MEMS微型燃料电池的迫切需求。

In this paper, the general situation of the overseas applications of micro fuel cells is introduced in detail. The feasibility of micro fuel cells fabrication using MEMS technology and characteristics of different types of MEMS-based micro fuel cells are briefly discussed. Combining with the critical components including the monopolar plate and membrane electrode assembly, the latest research progress of MEMS-based micro fuel cells are also summarized systematically. Finally, the existing problems and development trend are analyzed, and the urgent demand for developing MEMS-based micro fuel cells in our country is demonstrated. Contents

本文详细介绍了国外微型燃料电池的应用概况，简要论述了将MEMS技术应用于微型燃料电池制作的可行性以及MEMS微型燃料电池的类型特点，并结合关键组件极板和膜电极，系统地总结了近几年来MEMS微型燃料电池的研究进展和成果，最后分析了目前存在的问题和发展趋势以及我国大力发展MEMS微型燃料电池的迫切需求。

So far, there are 5 kinds of clustering algorithm includes partitional algorithm, hierarchical algorithm, density-based algorithm, grid-based algorithm and model-based algorithm.

目前，聚类算法大体上分为划分的方法、层次的方法、基于密度的方法、基于网格的方法和基于模型的方法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。