利用价值

By this way, with the function of dynamic concision, VRML browser can offer better windows of man-computer interaction in real time environment than before.

利用VRML建模进行医学脏器三维重建并结合JavaScript对三维模型进行动态切割，在成像质量和实时交互性等方面具有一定的优越性，有较大的临床实际应用价值。

It is possible for human being to attain correct cognition, management, maintenance and utilization of environment system and service function with reasonable marking under market economy, given that an appropriate relationship between input-outputs is provided.

经过全面价值标度的环境系统及其服务功能，在市场经济运行中，通过合理的投入-产出关系可以得到人类的正确认识、合理管理、维护与使用，从而奠定环境资源永续利用和人类可持续发展的基础。

Necessary and sufficient conditions for the existence and the expressions of selfconjugate solution, perselfconjugate solution, centrosymmetric solution, bisymmetric solution, skewselfconjugate solution, skewperselfconjugate solution, skewcentrosymmetric solution, and skewbisymmetric solution to 4 kinds of systems of linear matrix equations over a regular ring with an involutorial antiautomorphism are given.

利用矩阵技巧和所建立的矩阵理论，给出了正则环上五类矩阵方程组有解的若干充要条件和一般解的表达公式。这些矩阵方程组除了它们在理论上有重要的意义外，还有重要的应用价值。在具有对合反自同构的正则环上，给出了四类矩阵方程组有双对称解，中心对称解，斜中心对称解，广自共轭解，斜广自共轭解，自共轭解以及斜自共轭解的充要条件及其这些解的具体表达式。

The system is beneficial to the management that realizes the urban landed property management and the maximization of its value.

该系统的利用有助于实现对城市地产的管理，实现城市土地资源的价值最大化。

In this paper, searching technology of product information based on knowledge was researched. On the aspect of cognition, we researched the relation between user\'s cognition and designer\'s cognition, explored the knowledge flow in the process of product development, set up a matching model between user\'s knowledge and designer\'s knowledge, brought forward a modeling method based on users\' cognition, and set up a measurable model of product feature; coded and decoded product form element, set up a computer aided product form design system and image evaluating system based on the result of measurement. Accordingly, the product style and product image were systematically discussed, the recognition space of product style and image was constructed, the factors that affect product style and image were put forwards and analyzed, and the relation between product image and form elements was tested by experiments. Furthermore, the product automatic recognition technologies were discussed.And then, with the media of concept model and the kernel of parameter technology, a mathematic model that describing product layout design by constraints and rules was presented. Furthermore, a product design integration system based on imagery thinking including product fonii base system based on imagery thinking, product form design system based on imagery thinking and product form intelligent design system based on space layout were set up, which tested the system and provided a new way for product innovative design.

本文以产品特征描述目标对象——产品，研究一种基于知识的产品信息检索技术，在对产品的认知方面，研究了用户认知和设计师认知之间的关系，研究了产品开发过程中的知识流传递过程，建立了用户知识和设计知识之间的匹配模型，提出了一种基于用户知识的产品建模方法，它不但提取了产品的特征，还建立了产品特征量化模型，从而实现了产品知识的量化描述；对产品造型元素进行分解和编码，利用实验量化结果构造计算机辅助产品形状设计系统和心象评价系统；使用量表分析造型元素的心象尺度，构造输入、输出系统，建立了产品设计知识库咨询系统，可以方便用户和设计师来导入或查询产品设计方案；实现了对产品造型心象的分类知识库系统，便于设计师存储或查询，辅助设计师进行产品创新设计；通过实验量化了产品造型参数和产品心象参数之间的关系，并在此基础上建立了基于心象的产品形状设计系统，为产品空间布局方案智能生成系统奠定基础；在基于知识库的基础上建立了产品空间布局方案智能生成系统，通过更改概念产品造型参数，实现了产品设计方案的智能生成，使系列化的设计工作变得十分方便；将产品的心象运用到实际设计过程中，能够引导流行趋势，创造出产品无形的设计价值。

The agency efficiency of the second-hand house brokerage market is evaluated based on the customer\'s angle of view;use the method of the compare system economics to analyze the efficiency of the agency system with the buyer\'s commission paying,the open listing agency, the mediacy agency,the communication division and the percentage commission structure, and point out that all agency systems are efficient except the buyer\'s commission paying; bring forward the countermeasure to enhance the agency efficiency of the second-hand house brokerage market.

基于顾客价值视角对我国二手房经纪市场的代理效率进行了间接衡量；利用比较制度经济学的方法分别对我国二手房经纪市场佣金的买方单方支付、多家上市代理、居间代理、信息分割及百分比佣金结构等代理制度的有效性进行了分析，指出除佣金的买方单方支付是一种相对有效的制度安排外，其余代理制度都是无效的代理制度安排，与之相对应的独家代理、分离的买方与卖方代理、信息共享及包含差价的佣金结构则是有效的代理制度安排；提出了提高我国二手房经纪市场代理效率的对策建议。

From the value goal of environmental crisis, the environmental right should become property right and should be mercerization. We should shift people"s interests on treasuring the environmental resources and investing in environmental improvement with the market mechanism, improve the use efficiency of the environmental resources, make economic development and environmental protection develop together, and have the environmental resources meet social need and fully guarantee the human"s demand.

从应对环境危机的价值目标出发，环境权的出路应是产权化，市场化，用市场机制调动人们珍惜环境资源和投资环境治理的兴趣，提高环境资源的利用效率，使经济发展和环境保护相辅相成，环境资源既能满足社会经济生产的需要，又能充分保证人类的生存需求。

With an example, the paper uses finite element program ANSYS to establish three calculating model of the steel-concrete composite open-web floor: the combination finite element method of spatial beam elements and shell elements, the finite element method of shell elements and the combination finite element method of shell elements and entity element.

结合一算例，利用ANSYS有限元软件，建立了组合空腹楼盖的三种计算模型：空间梁单元与壳单元的混合元模型、空间壳单元模型、壳单元和块体单元模型三种理论计算方法，对这三种计算模型作分析对比，得到了静荷载作用下该类结构的内力分布规律及其他一些有价值的结论。

The results showed that the virus isolation and identification could generate considerably reliable results but the procedure was complicated and costed long time; microtomy fluorescent antibody detection was fast, but the specificity was low and needed to exclude the false positive from the results. Sandwich ELISA detection combined the merits of the former two methods, but it generated the false negative results when the samples were in bad preservation. Compared with the others, RT-PCR was fast, high sensitive and especially useful for detecting the CSFV directly from the samples. The specificity could be raised by using the nested-PCR to detect the CSFV from the simples, especially when the simples were in bad preservation.

结果显示，病毒分离鉴定法准确性较高，诊断比较容易，但存在试验步骤繁琐，所需时间长的缺点；荧光抗体检测法所需时间较短，但需要经验比较丰富人员来判定结果，且存在假阳性结果，特异性比较差；RT-PCR检测法具有快速、敏感等优点，特别是样品保存不理想时更有价值，利用套式PCR可以提高检测的特异性；夹心ELISA检测法具有快速、敏感等优点，但在样品保存不理想时会出现假阴性结果。

In this paper, by using some characteristic quantities such as value function, trust region radius, etc. in trust region method, we present a global error bound for the distance between a feasible solution and the optimal solution under the condition that the gradient vector of the objective function is strongly monotone.

本文利用信赖域方法中的几个特征量（由预测下降量给出的价值函数与信赖域半径等），在目标函数的梯度向量是强单调的条件下，为约束最优化问题的可行解与最优解之间的距离提供了一个全局误差界。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷