An access control mechanism, which is uniform, topic-based and role-based, is proposed for spatial data warehouse.

Multi-Resolution Analysis ( MRA ) notion of wavelet theory has striking similarity with multi-scale representation of spatial data.

小波理论的多分辨率分析思想与空间数据的 多尺度 表达有惊人的相似性.

Discusses reseaches about representation of spatial data in the tactical information fusion system.

讨论了战术信息融合系统中空间数据的表示方法.

So the integration of GIS with spatial data mining technology is very necessary.

因此,GIS与空间数据挖掘技术的集成是十分必要的.

Family reunification-based spatial data.

家族空间资料统一型.

Spatial data is the abstract of geographical entity in the real world.

空间数据是对现实世界地理实体的抽象.

The paper introduced the main contents of forest resource non-spatial data.

介绍了森林资源 非 空间数据所包含的主要内容.

Noise pollution has complex spatial distribution, traditional evaluation methods achieve accurate, direct-viewing effects with difficulty.

噪声污染具有复杂的空间分布特征, 传统评价方法难以达到准确 、 直观的效果.

Optimizing urban spatial distribution is very important for speeding up urbanization and raising level of urbanization.

优化城镇空间布局是推进城市化进程、提高城市化质量的重要内容.

Objective : To explore applicability of the variograms model in studying the spatial distribution of disease.

目的: 探讨变异函数模型技术在疾病空间分布状态分析中的应用价值.

Grid transformation of population data is the focus of population spatial distribution.

人口数据格网化是目前人口空间分布研究的热点.

The spatial distribution of element concentration values is expressed in the form of map.

元素浓度值的空间分布应以图的形式表示.

Spatial distribution must also be regarded in the evaluation of competition.

在评价竞争时,同样必须注意空间分布.

Second, its firms specialise in innovative , high-value-added products.

其次, 这里的公司精于运作 高附加值 的新式产品.

Our to manufacture and market world-class intermediate and Specialty Chemicals to the global market.

我们生产的中间体化学制品远销往世界各地.

The result of species-abundance indicates that forest community, there is apical or stable.

种 - 多度的结果说明,该地区森林群落形成了顶级或稳定群落.

Very few showed significant declines in species richness with distance froms ubplot boundaries.

很少(块草地)显示随着边界距离的增加引起明显的品种数量的减少.

But it looks as though their species richness is caused by the same underlying mechanism.

但看上去,它们的物种丰富性是由同一种潜在的生物机制所产生的.

Species richness was generally low in all shrub communities.

各类灌丛之间物种丰富度指数相差不大.

The matrix of power spectral density function of fluctuating wind load is established first.

首先建立了脉动风荷载的功率谱密度函数矩阵.

A new statistical model for non-frequency mobilechannel is presented in this paper from the Doppler-Power-Spectral-Density.

本文从多普勒功率谱的角度研究了 非 频率选择性衰落的信道模型.