作用中心

The CPC Central Committee, the State Council, the wise leadership of the State Bureau of Surveying and Mapping party the right command center with satellite mapping application to all the comrades of the pioneering and innovative, I believe that satellite mapping application center will give full play to the earth observation satellite mapping technology and security services in China Surveying and Mapping the important role of the work, in order to greatly enhance our independent access to geospatial information, the ability to speed up the spatial data infrastructure construction, promote the development of geographic information industry and promote the information mapping system, comprehensive surveying and mapping support to enhance the capacity and service levels, to make a positive contribution.

有党中央、国务院的英明领导，有国家测绘局党组的正确指挥，有卫星测绘应用中心全体同志的开拓创新，相信卫星测绘应用中心一定会充分发挥对地观测技术及测绘卫星在我国测绘保障服务工作中的重要作用，为大力增强我国独立获取地理空间信息的能力，加快空间数据基础设施建设，推动地理信息产业发展，切实推进信息化测绘体系建设，全面提升测绘保障能力和服务水平，作出积极的贡献。

The special purpose computer software used by this center has great effect on improving the management of tourism automobiles, hotels, travel agencies and scenic spots, striking illegal vehicles and unlicensed tour guides and putting an end to chain debts.

与会代表还实地考察了丽江旅游结算管理中心，该中心所使用的专用电脑软件对加强旅游汽车、饭店、旅行社、景点的管理，打击黑车、黑导和杜绝三角债很有效果，对各地具有示范作用。

In this paper, the experiment results in the strength of two spectral series depending on the concentration of sensibilizer Terbium have been analysed.

可见对于铽的绿色谱线而言，铽离子本身也会起一种敏化作用。据此，我们提出了三价铽离子具有自敏化效应的观点，来解释上述的实验结果，这种观点是：在含有较高浓度铽离子的磷光体中，铽离子既是绿色辐射的发光中心，又是它的敏化中心。

Ourgoals are to synthesize new triboluminescent complexes, to determine their crystalstructures, photoluminescence spectra and triboluminescence spectra, and to dosystematic researches of relationships between their crystal structures andtriboluminescent activities.

为了解释有对称中心结构的物质具有摩擦发光现象，Sweeting提出，在具有摩擦发光特性的有对称中心结构的物质中，少量的杂质及结构的无序可能对摩擦发光起了很重要的作用。

Initially, if the thermal wind vorticity of wind field is larger than that of the temperature field, and the horizontal scale of the disturba...

这种不稳定的作用，可在较短的时间内(约24小时)造成上层是反气旋、下层是气旋和中心为暖中心的猛烈的涡旋形成。

The effects of increasing the stereospecilicity is due to deactivation of different selectivity for both atactic and isotatic active centers and the deactivation of atacitic active centers is much greater than that of isotactic active centers.

EB、DIBP和TMP用作Din的效果则各不相同。烷氧基硅烷等Dex提高等规度的作用是由于它们选择性地使无规活性中心失活大大高于等规活性中心。

The results show that the formation of dry gas is abided by reaction mechanism involving the cleavage of pentacoordinated Carbonium ion which is formed by the protonation of alkanes over acidic catalyst.

结果表明，烷烃分子首先在催化剂酸性中心作用下发生质子化反应，烷烃分子链上易受到氢质子进攻的位置一般在其叔碳原子或碳链中心碳原子附近的C—H键或C—C键处，形成两种反应过渡态物种——五配位正碳离子H-Carbonium和C-Carbonium。

OBJECTIVE To study the effect of centrosome on mutation and development of gene of laryngeal carcinoma by investigating centrosome expression and metaphase morphology in laryngeal squamous cell carcinoma cell lines.

目的通过对喉鳞状细胞癌细胞系中心体表达和细胞分裂形态的研究，探讨中心体通过对细胞分裂过程的调控，在促进喉癌基因不断变异、发展机制过程中的作用。

In this section, applying the method, from abstract to specific and from history to present, it analyzes the operation mechanism of urbanization economy affected by market mechanism; puts forward four theories of urbanization economy from economic perspective, including agriculture surplus and comparison advantage; non-agricultural industry; agglomeration economy and spillover effect, on this basis of the theories, it, on one hand, analyzes two kinds of internal mechanism in the chronologic operation of urbanization economies: increasing mechanism of urbanization economies in urban output industry; and changing mechanism from specialization to integration, which are the representations of the evolution of "mart" development; on the other hand, it analyzes two internal mechanism of dimensional operation of urbanization economy: internal spatial enlargement mechanism of urbanization economies from monocentric city to multi-center city, and external spatial enhancement mechanism which represents city-regionalization and city-chain connection, the later two mechanism represent the evolution of "polis" development.

这一部分，按照由抽象到具体和由历史到现代的研究方法，分析了市场机制作用下的城市化经济运行机理，从经济学角度提出了农业剩余与比较优势、非农产业、聚集经济、外溢效应四大城市化经济定理；在此基础上，一方面分析了城市化经济运行沿时间增长的两个内在内容提要机制：城市输出产业的城市化经济增长机制和从专业化到综合化的城市性质变迁机制，它们主要表现为&市&发展的延续；另一方面分析了城市化经济运行沿空间增长的两个内在机制：从单中心到多中心的城市化经济运行的内部空间扩展机理和表现为城市区域化、城市连绵体的城市化经济运行的外部空间扩展机理，它们主要表现为&城&发展的延续。

This fact indicated that the dendrimers three-dimensional hyper-branched structure had great protection to the core and the emanative structure also reduced the interaction between the cores of molecules.

这表明树枝单元的三维空间结构对中心核起到了很好的保护作用，另外发散的构型使得中心核之间的相互作用减弱。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。