查询词典 restricted randomization

A algorithm of searching and computing two adjacent polygons' closest distance based on restricted circle has been presented in this paper, that can be fitted for the situations of undistinguished shapes and location relationships of the two adjacent polygons.

本文提出了基于约束圆寻找并计算任意两个实体多边形之间的最近距离方法，并给出了约束圆的特征。这种方法适用于不用区分实体多边形的形状与位置的各种情况。

Spatial relationship; Polygon; Delaunay triangular net; Closest distance; Restricted circle

空间关系；多边形；Delaunay三角网；最近距离；约束圆

An algorithm of searching and computing two adjacent polygons' closest distance based on restricted circle has been proposed in this paper, which can be fitted for the situations of undistinguished shapes and location relationships of the two adjacent polygons.

空间方向关系、空间拓扑关系和空间相似关系、相关关系的研究都离不开空间距离这个基础(闫浩文2003)。二维空间目标间的距离关系，尤其是面状目标间的距离，描述和计算都相当复杂[1-2]。

spatial relation ; polygon ; Delaunay triangular net ; closest distance ; restricted circle

对于点状和线状实体之间的距离计算非常简单，这里不赘述。本文主要从二维空间面状实体

But its development will be restricted by the complexity of distributed database system development.

但由于其开发较为复杂，在一定程度上制约了它的发展。

The two factors that restricted the distribution of risk is the cost of trading and the motivation issue.

限制有效分配风险的两个主要因素是交易成本和激励问题。

The distribution of underground water in space has the basic law, which is restricted by relative factors.

地下水网络在空间的分布规律受相关因素的制约，存在最基本的规律。

The phytoplankton diversity was restricted by environment factor such as water temperature, salinity, COD, biomass, species.

浮游植物多样性主要受水温、盐度、COD、生物量、物种数等环境因子的制约。

And the new transaction ore patterns establish one after another, which causes the mine enterprise to coruscate vital force. However due to mine enterprises one-sided pursue economic efficiency, the safety management and the environmental protection consciousness desalination, the exploitation technology and equipment correspondingly draggle, safety intendance instrument lag as well as the modality of the management and administration diversification such as the contract, the subcontract, the rents and so on, mining accident continually occur. These accidents caused a huge loss of both life and economy to nation, mine enterprises and multitude who live somewhere about mine, brought ill social influence, and badly restricted the continual development of the national economy and mine enterprise.

然而，全球一体化对我国矿业带来的挑战，以及我国矿山片面追求经济效益、安全管理和环境保护意识的淡化、开采技术和设备的相对落后以及承包、转包、租赁等经营管理形式的多样化，安全监管手段滞后，造成矿难事故频频发生，给国家、矿山企业以及附近的广大人民群众造成了巨大的生命财产和经济损失，产生了不良的社会影响，严重制约了国民经济和矿山企业的可持续发展。

Up to date, the research of the digital watershed model is still in the initiatory periodand the range of research is restricted into the small drainage basin.

目前该研究还处于起步阶段，研究区域的范围大多局限于小流域，离全流域的综合模型尚有一段距离。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。