查询词典 spatial model

Moreover, we discuss the geo spatial information value-added services network, which will be formed on the internet in the future, and the development and prospects of GIServices. The development mechanism of geo spatial information service model is summarized.

分析了每种模式的空间信息流模型与增值过程，并讨论了适合的空间信息服务应用，以及在Internet上未来会形成的空间信息增值服务网络，展望了空间信息服务的大众化发展方向。

The research is about the reuse of urban sewage for virescence irrigation, and the influence of sewage irrigation on eco-environment such as soil, plant, etc. is studied. Under the condition of field sewage irrigation, the transport and transformation and accumulation mechanism of heavy metals, nutrients and organic pollutants as vaporizable hydroxybenzene etc. in the soil-plant system are analyzed. The heavy metal pollution is evaluated by the comprehensive pollution index. The spatial variability of heavy metals in sewage irrigation area is further understood. The spatial variability of heavy metals and physical and chemical properties of soil are reflected in a more straight way by the theory model of variance function curve based on the geographical information system.

在城市污水回用于绿化灌溉对土壤、植物等生态环境的影响研究中分析了大田条件下污灌对土壤-植物体系中重金属、养分及挥发酚等有机污染物迁移转化及富集机理，对重金属污染进行了综合污染指数评价，进一步了解了污灌区重金属分布的空间异质性，基于地理信息系统提出了变异函数曲线的理论模型，更直观地反映出了重金属元素与土壤理化参数的空间变异特征。

The model can be used to check and maintain quality of spatial data, and provide process and evaluation methods of spatial relations for automatic cartographical generalization.

该模型可以用于检验和维护空间数据质量、为地图自动综合提供空间关系处理和评价方法的参考。

From intergrating model the general forest ecological economic structure classified by equal interval analysis spatial heterogenicity of the forest ecological benefit economic structure to create money gross of GIS spatial graphic distribution and statistics histogram, described the ecological benefit, and dynamics analyse the forest ecological benefits in last ninty years.

从广义森林生态效益经济结构汇总模型出发、按等间隔的分类标准作出森林生态效益货币总量的GIS空间分布图及其统计直方图，进行森林生态效益经济结构的空间异质性分析，划分黑龙江省森林生态效益的主产区，进行了森林生态效益的跨度近90年的动态分析。

Most of the GIS are centered on spatial data.But they have poor ability to express objective geographical world intactly, perform high-level space analysis and put forward the decision scheme directly.The key reason is the traditional spatial data model cant describe the world exactly.

另一方面，今天的GIS已经具备了较强的数据存储、管理功能，但目前大多数GIS仍然是以数据为中心，在完整表达客观地理世界、进行高层次的空间分析和直接提出决策方案的能力方面还远远不够，导致这种情况的根本原因在于现有GIS的数据模型不能准确的表达客观地理世界。

Studies on spatial heteroplasmy of Saperda Papulnea L. population from different directions indicated that the model of semivariogram of eggs, larvae and adults in four directions are the same, but spatial dependent range are different, belonging to geometrical anisotropy. They had stronger continuity in the direction of 0° and 45° than the other two directions.

对不同方向上青杨天牛种群空间异质性研究表明：天牛卵、幼虫和成虫在四个方向上的半变异函数拟合的模型相同，但空间依赖范围却不同，属几何性的各向异性。

The study brings forward the basic conception of spatial information system for Chinese terrestrial ecosystem.Based on reviews of recent spatialization technology research of meteorology and climate information at home and abroad,we appraised virtue of methods in existence and discussed the model of spatial distribution of meteorology and climate information.

论文提出了构建中国陆地生态系统空间化信息系统的基本设想，并且在回顾国内外气象/气候信息空间化研究的现状基础上，评价了已有的气象/气候信息要素空间化技术的发展，探讨了中国陆地生态系统气象/气候信息空间化的技术途径，概要地介绍了研究小组在近年来的工作中所取得的阶段性研究成果，展望了这些成果的应用前景。

In imaging electron optics, for a concentric spherical system composed of two spherical electrodes with electrostatic focusing, the electrostatic potential distribution and the spatial-temporal trajectory of electron motion can be expressed by analytical forms. It is naturally to take such system as an ideal model to investigate the imaging properties, as well as the spatial-temporal aberrations, to analyze its particularity and to find the clue of universalities and regularities.

在成像电子光学中，由两个球面电极组成的静电聚焦同心球系统，由于其静电电位分布和电子运动的空间和时间轨迹能以解析形式表示，很自然被采用作为理想模型，研究其成像特性和空间―时间像差，分析系统的特殊性，从而寻找具有普遍意义和规律性的线索。

A rate equation model is introduced, in which the intracavity photon density is assumed to be Gaussian spatial distribution and the pump beam spatial distribution is also considered.

考虑腔内光子数密度的高斯空间分布以及抽运光的空间分布，给出了描述调Q激光器工作原理的耦合速率方程组，其数值解与实验结果相符。

The regression period of cotton aphid: The spatial patterns of aphid population were confirmed to exponent, linear and nugget model under large scale along with the time sequence, respectively, results suggested that the spatial patterns were aggregated, medium intensity aggregation and random distribution, respectively, and the space continuity is decreasing.

3消退期：大尺度下按时间顺序，棉蚜的变异函数模型分别为指数型、线性及块金模型，表明空间格局分别表现为聚集型、中等强度和随机分布，棉蚜种群的空间自相关性及空间连续性在后期递减。

"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。