您要查找的是不是：
- Using multi scale DEM datum, multi scale topographic index are extracted and mapped in the whole country and sample area in bess plateau, which prepare topographic datum basis for developing regional soil and water loss assessment model. （2）利用多尺度的DEM数据，提取了多尺度的水土流失地形指标，编制了全国及黄土高原典型样区的水土流失地形指标专题图件，为多尺度区域水土流失评价模型的建立准备了地形数据基础。
- Geological and Topographic Data Base of Shuichang Iron Mine and Its Application in Blasting Design 水厂铁矿地质地形数据库及其在爆破设计中的应用
- topographic data base 地形数据库
- In a data base, the smallest unit of data that can be referred to. 在数据库中，可被访问的最小数据单位。
- The overall logical organization of a data base. 一种数据库的总体的逻辑结构。
- Principle and application of engineering data base. 工程数据库原理及应用。
- The demonstration program of data base query. 数据库查询示例程序
- One moment. While we connect our data base. 稍等,连接数据库。
- Data Base Error reading sector on hard disk. 在硬碟上有错误的磁区而阻碍正确档案的读取。
- In data base terminology, a single instance, for example, a set occurrence, a record occurrence. 在数据库术语中，一个单一实例，例如，一组具体值，一个记录的具体值。
- Residential data is a kind of important topographic data and continually change. 摘要居民地数据是一类重要的地形数据，其变化非常频繁。
- Some researchers have argued that Mars had extensive oceans: images and topographic data hint at shorelines and smooth ocean floors. 有些研究人员认为，火星曾有广大的海洋：影像和地形资料暗示著有海岸线与平缓海底的存在。
- In a relation data base, the number of tuples in a relation. 关系数据库中，一个关系的元组数目。
- A logical sub-division of a data base that contains all occurrences of stipulated data aggregates. 数据库中的一种逻辑子域，它包含了有约定的数据的聚集的全部(具体)值。
- This site offers data on ecosystems, geomagnetism, heat flow, natural hazards and gravity along with topographic data and DEMs covering the whole world with emphasis on the USA. 此网站提供有关生态系统、地磁、地热、自然灾害、重力与地形数据。这些数据基本覆盖全世界，重点是美国地区。
- In a data base,the smallest unit of data that can be referred to. 在数据库中，可被访问的最小数据单位。
- Based on the field measured topographic data of the scour protection project of the main pylon pier of Sutong Bridge, a digital elevation model (DEM) is established. 摘要根据苏通大桥主塔墩基础冲刷防护工程区内的实测地形资料，建立数字高程模型(DEM)。
- A name used to identify the data unit in a data base. 用于标识数据库中数据单位的名字。
- Compared with the previous version, perfected Turkish data base. 与前一版本相比完善了土耳其语文本库。
- Proficiency with data based problem solving. 熟练运用基于数据的问题解决方法。
