查询词典 spatial

A new algorithm of 3-D spatial clustering based on mathematical morphology was presented. The process of spatial data mining was given, and an artillery position selection system was realized.

提出了一个基于数学形态学的三维聚类算法，给出了空间数据挖掘过程，实现了炮阵地选取决策支持系统。

Primary Scholar,Spatial Visualization,Spatial Presentation,the Planar Structure,the Cultivating Strategy and Practice

小学生，空间想象力，二维内容结构，空间表象，培养策略与实践

A cell is not just a well-mixed container of chemicals, but an extremely intricate system of membranes, vesicles and signaling pathways. Although a number of milestones have been built though endeavor for over a century, much is still left to discover about the spatial organization and mobility of macro-molecules (such as proteins, protein complexes, nucleic acids, signaling substances, etc.) in cells, and the spatial relationships between cells in tissues.

细胞不仅是大量化学物质的容器，也是膜、泡囊和信号传导通路组成的复杂系统，尽管通过一个多世纪的努力，细胞生物学研究取得了若干重大进展，但是关于细胞内特定高分子(如蛋白质、蛋白质复合体、核酸和信号传导物质等等)的空间组织和运动规律以及组织内细胞空间关系等许多问题的机理目前仍不清楚。

Two of properties of spatial reasoning are spatial relation's uncertainty and computational complexity.

空间推理的不确定性和推理计算的复杂性是地理空间推理的两个基本特点。

There are many influences for relation's uncertainty in spatial reasoning, and the three most important influences are the data uncertainty and acquiring difficulty of relation information and result uncertainty of spatial reasoning.

空间推理问题的不确定性的主要原因是数据的不确定性、关系提取的困难性和推理过程的不确定性，这三种不确定性因素都影响到了地理空间推理中的地图目标空间关系发掘和提取，同时，计算的复杂性也是影响地理空间推理系统应用的一个重要因素。

Using the two-stream fluid model, the linear dispersion relation is derived assuming a two-dimensional spatial geometry. Two cases are considered, one is that the 2D spatial geometry is defined by the plane containing the two counterstreaming electron populations and the perturbation wave vector , and the other is that the geometry is defined by the plane being vertical to the two counterstreaming electron populations .

对高能束流和电子回流构成的双流系统，建立冷等离子体流体模型，采用简正模分析方法，分别考虑扰动波矢在平行于电流传播方向的平面上和在垂直于电流传播方向的平面上这两种情况，推导了不稳定性的色散关系。

To investigate the spatial-dependence of heterogeneity at multiple scales for a community, we selected a representative plot of 100 m×100 m in the mountainous evergreen and deciduous mixed broad-leaved forest in Sichuan, southwest China (102°50'E, 30°02'N).The location of every tree was mapped by compass, and all-scale analysis of spatial structure of forest community was conducted by the method of PCNM (principal coordinates of neighbor matrices).

为了解植物群落在多尺度下的空间变异规律及其对空间尺度的依赖，以川西南山地阔叶混交林为对象，在有代表性的地段设立100m×100m样地，采用传统的罗盘仪对树体的相对空间位置进行定位，运用主轴邻距法(principal coordinates of neighbor matrices， PCNM)对群落空间结构的多尺度（100m内）特征进行了研究。

Based on the water environment spatial data mining and visualization method, the paper presents these main characteristics and innovations:①Measurement of contamination fluxes:A scene-based research strategy is proposed:measurement /water quality analysis→flow field simulation→contamination transformation rule→fluxes scene simulation→temporal-spatial rule analysis.②Serial numerical models of water environment in the Qiantang River:The controlled equations of the flow field model of the main river,united controlled equations of the main contamination fluxes and water quality prediction model at emergent time are set up.③GIS-based water quality and contamination fluxes decision-making assistance system:A water environment database has been set up;based on MapX and C#.net platform,a system has been developed to facilitate visual inquiry,decision-making and graphics export.

本文基于水环境空间数据挖掘与可视化的研究方法与体系，研究中的主要特色与创新点为：①河流污染物通量测算的技术与方法：提出了基于工况测量/水质分析→流场模拟→污染规律解析→通量情景模拟→时空规律分析的研究方案；②钱塘江水环境模拟系列数学模型：建立了钱塘江干流研究区域流场数学模型的控制方程、主要污染物通量模型的联合控制方程、突发污染事故水质预报模型的基本方程；③基于GIS的水质预报与污染物通量决策支持系统的研发：建立水环境时空数据库，基于MapX和C#。net平台进行系统的构建与开发，为研究的系列成果提供可视化的查询、决策与图形输出。

By means of 10m spatial resolution SPOT images themajor rupture zone can be revealed distinctly, meanwhile, 1m spatial resolution IKONOS images display the fine structures and kinematical characteristics of the surface rupture of the earthquake.

应用高分辨率卫星影像进行地震地表破裂带解译，10m分辨率SPOT卫星影像能够清楚地反映出地震地表破裂主破裂带的形迹， 1m分辨率IKONOS影像能反映出地震地表破裂的精细结构及运动特征。

This articles main innovation is to have independently developed a set of distributional spatial data integration software from the first floor, has constructed the spatial information application service platform prototype based on the SIG frame city by using this software, and has solved the distributional isomerism space data conformity demonstration and in the client side realize to the far-end data operation and so on the essential technology.

本文的主要创新之处在于是从底层自主开发了一套分布式空间数据集成软件，利用该软件构建了基于SIG框架的城市空间信息应用服务平台原型，解决了分布式异构空间数据整合显示及在客户端实现对远端数据的操作等关键技术。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。