大地测量

In Asian area, VLBI technique has been developed for geodetic researches, astrometry, as well as for astrophysical studies.

在亚洲地区，VLBI技术主要被发展用于空间大地测量、天体测量、和天体物理观测研究。

It applies non-metric digital camera as the main tool, and only needs some distances of data points instead of coordinate controls on model plane.

以普通数码相机为测量工具，不需要基准点的坐标而只需测量部分基准点间的距离即可恢复模型平面与像平面间的单应关系，使得测量工作不依赖大地测量仪器。

In accordance with the delegation's knowledge about the geophysical research work made by ROB and the related materials provided by Belgium,the paper describes the fol- lowing research work of ROB,that is,earth tide and gravity measurements,time determin...

根据访问期间对比利时皇家天文台在地球物理方面所开展的研究工作的了解及比方提供的材料，本文介绍了比利时皇家天文台在地球固体潮和重力测量方面的工作，在时间确定、地球自转的观测与研究和空间大地测量方面的活动，以及在地震学方面的工作，最后还简要地介绍了卢森堡大公国瓦尔弗当日地球动力学地下实验室的情况。

National Geodetic Control Network of China is an important fundamental scientific engineering project in China.

"2000国家大地控制网"是国家大地测量的重大科学工程项目。

The main purpose of physical geodesy is to ascertain the outer Earth gravity field and geoid.

物理大地测量的主要目标是确定地球外部重力场和大地水准面。

In this paper, the theories of lunar control network foundation and lunar map projection are studied. Three foundation methods of lunar control network and the progress in American lunar control network are summarized and analyzed.

月球大地测量是月球探测的主要任务之一，本文主要对月面大地控制网的建立理论以及月球投影的理论和方法进行研究。

Now it is used in many branches in our nation including the department of agriculture, foresty, national resources , city construction and so on.Some of the existed national control networks of different precision rate or local areas based on the traditional surveying methods have played an important role in our national lives at the large costs including manuals, fianances and materials.

利用常规大地测量方法布设的各级国家大地控制网和以此为基准布设的各级地方控制网或地方独立网，是结合当时我国最高测绘技术水平，在花费了大量的人、财、物的基础上，建立的重要基础性测绘资料，为我国国民经济发展和社会各项建设事业发挥了重要作用。

The main research fields include:（1）Global and regional crustal movement;（2）Interior structure of the Earth and the interactions among geo-spheres;（3）Mass distribution and wavement of the Earth's system;（4）Application of geodesy in space technology and the construction of national projects;（5）Monitoring and evaluating the environment and natural hazards and evolution and restoration of the wetland ecosystem in the middle reaches of Yangtze River by using '3S' techniques.

研究所主要从事大地测量学、地球物理学与环境科学相关重要科学问题研究，包括地球局部和整体运动、地球内部结构及圈层相互作用、地球系统的质量分布和迁移、大地测量在空间技术和国家大型工程建设中的应用、长江中游地区环境与灾害监测评估和湿地演化与修复等方面。

Project construction is in the national spatial coordinate reference frame, based on the use of high-tech means of Geodesy, in Baotou city, the information on outcomes and quality of the original plane, gravity surveying and mapping information, etc. Based on the results, in accordance with unified planning and overall design principles, laid covering the city's domain sets plane, elevation, gravity field information based on the integrated control network formed by the geodetic datum, elevation and gravity reference base composed of high-precision, three-dimensional center of the earth and practical reference Baotou modern surveying and mapping system for the "Digital Baotou" construction and large-scale mapping projects such as surveying and mapping provides a unified spatial orientation reference.

项目建设是在国家空间坐标基准框架的基础上，利用大地测量的高新技术手段，在包头市原有平面成果资料和水准、重力资料等测绘成果的基础上，按照统一规划、整体设计的原则，布设覆盖全市域集平面、高程、重力场信息于一体的综合性基础控制网，形成由大地基准、高程基准和重力基准等组成的高精度、三维地心、实用的包头市现代测绘基准体系，为&数字包头&建设和大比例尺测图等测绘工程提供了统一的空间定位基准。

Main courses: satellite geodesy, error theory and data processing, physical geodesy, space geodetic techniques and applications, imaging and mapping, navigation, celestial mechanics, photogrammetry, digital image processing, pattern recognition, radio communications and navigation , digital and analog circuits, such as optimal control.

主要课程：卫星大地测量学、误差理论与数据处理、物理大地测量、空间测地技术及应用、影像与制图、组合导航、天体力学、摄影测量学、数字图像处理、模式识别、无线电通讯与导航、数字与模拟电路、最优控制等。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。