查询词典 spatial point

Based on the convergence theory in the documents about economic growth, the thesis makes the matrix, one kind of the methods about Spatial Econometrics, according to the spatial geographical ubiety between provinces in order to analyses empirically the difference about the economic growth between areas in the mainland since the open-door policy, especially the year 1990 from which the economy of China grows rapidly.

本文以经济增长文献中有关收敛性理论为基础，运用根据省际间的空间地理位置关系建立空间关系矩阵的空间计量经济学方法，对中国改革开发以来，特别是经济高速发展的1990年以来中国大陆地区的地区经济增长差异进行实证分析。

Spatial public policy of industrial agglomeration are based on industry policy and industrial agglomeration policy,and uneconomic space formed by maket malfunction is in need of it,it's very important to scientific development of spatial economy.

认为产业集聚空间公共政策是空间公共政策的一种，产业政策和产业集聚政策是其基础，而市场失灵引发的空间不经济是其产生的客观需要，对空间经济的科学发展具有重要作用。

This method makes the best of the advantage of binary optics and liquid crystal-spatial light modulator. It can avoid the unhandy of binary optics and the low efficiency of liquid crystal-spatial light modulator according to the demand. It optimizes temperature uniformity system.

该方法主要是充分利用二元光学法和液晶空间光调制的各自优点，并按照设计系统的要求，最大程度避免二元光学法使用不灵活而液晶空间光调制激光能量利用率不高的缺点，实现温度分布均匀化系统优化。

A framework is proposed for modeling spatial distribution of population density. The study region is divided into fine grids. Kernel estimation is used to break down count data published for one fixed set of irregular areal units to the grids where the population is uniformly distributed. The spatial continuous surface which reflects a truer p...

将研究区域划分为一定分辨率的格网，用核心估计方法将人口密度估计值分配到每个格网上，每个格网上的人口是均匀分布的，随着格网分辨率的提高，就可以模拟出符合人口详细分布的人口密度空间连续分布模型，并通过实验说明该方法是可行的。

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。

Spatial mechanism ; transmission ; kinematic synthesis ; spatial similar complex vector ; equation

空间机构；传动；运动综合；空间类复向量；方程式

According to the current status of the research of 3D spatial data model,a grid representation of 3D vector model is presented,which represents the 3D spatial structure by recording the key points couple on the 2D grid.

根据三维空间数据模型的研究现状，提出了一种三维矢量模型的栅格表示方法，该方法采用在二维栅格上记录关键点对的方法来表示三维空间结构，能够表达空间中存在复杂断层的情况。

In recently years, voluminous and complicated spatial data are accumulated in spatial databases wi...

3S技术的广泛使用使空间数据库中积累了海量、复杂的空间数据，这对传统的GIS空间分析功能提出了严重挑战。

In spatial domain, we use the watershed algorithm to find out the characteristics of the spatial domain.

在空间上我们利用分水岭演算法，将空间上的特徵资讯找出来。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。