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.

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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.

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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.

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Family reunification-based spatial data.

家族空间资料统一型.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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