查询词典 vector area

One small area and large area ideal villa for sale, small area of the villa buyers are often used for self-occupation, large-area house buyers are more in order to entertain business clients.

一个小面积和大面积的理想别墅出售，小面积的别墅购买者往往是用于自住，大面积购房者更以娱乐业务的客户。

For the leaf area index of the three forest types, there was a similar variation trend, i.e ., increased first and decreased then, with the maximum presented in mid-July or August for Q. mongolica and J.mandshurica forests while in mid-August or September for F. rhynchophulla forest. The canopy porosity of the three forest types also had a similar variation trend, but opposite to leaf area index, being decreased first and increased then, with the minimum presented in mid-June, July, August or September. The analysis of variation coefficients of leaf area index, transmitted direct gap light, and transmitted diffuse gap light indicated that the spatial pattern of leaf area index in July-September was the main factor affecting the spatial distribution of transmitted diffuse gap light.

结果表明，3种林型的叶面积指数变化总体趋势是一致的，均呈先上升再下降的单峰曲线，蒙古栎林和胡桃楸林都是在7月中旬或8月中旬达到最大峰值，花曲柳林是在8月中旬或9月中旬达到最大峰值；3种林型冠层孔隙度的变化总体趋势也是一致的，呈先下降再上升的单峰曲线，不同样地峰值出现的时间也不同，最低峰值在6、7、8、9月中旬均有出现；通过对不同月份的叶面积指数、林下散射光、林下直射光的变异系数分析表明，7—9月叶面积指数的空间格局是影响林下散射光空间分布的主要因素。

To further verify the rationality and science of the evaluation system and find out its limitation, the thesis takes the northwestern mountainous and hilly towns in Hangzhou for example, chooses evaluation indices, defines weight distribution, assigns values to the indices, constructs the evaluation system, evaluates the land constructability and defines four subareas for the northwestern mountainous and hilly towns in Hangzhou depending on the constructability, which refer to prohibition area, regulation area, constructable area and build-up area.

为了进一步从实践上验证该评价体系的合理性和科学性，以及校验其存在的不足之处，本文以杭州市西北山地丘陵城镇为实例，选择评价指标，进行权重分配和指标赋值，构建评价体系；进行土地适建性评价；界定杭州市西北部山地丘陵城镇的建设适宜度分区——禁建区、限建区、适建区和已建区。

This text aims at the difference of several representative geology conditions in Yang Shui mining area, carried on the primary election to the mining method of Yang Shui mining area, introduced the new theories of numerical optimization choice of mining method that are fuzzy mathematics and artificial neural network etc, based on the existing mining methods that are feasible, adopt the fuzzy optimization choice principle of flexible neural networks, and synthesize several experts and fieldworkers' opinion, built up the related mathematical model and revised model, carried on processing of programming through computer, thus established each optimization mining project under several representative geology conditions in Yang Shui mining area, and carried on optimizing to the existent unreasonable parameter in mining project;have the great significance to aim at each kind of geology condition for each mining area to adjust the mining method in time in the course of mining, abandon chronically unreasonable mining method, full reclaim the mine's resource, lower the dilution rate、 loss rate of mineral mining, raise the production capacity of stope and economic benefit of mine.

本文针对洋水矿区几种典型地质条件差异，对洋水矿区采矿方法进行了初选，介绍了模糊数学和人工神经网络等采矿方法数值优选新理论，在现有可行性采矿方法的基础上，采用弹性神经网络模糊优选原理，并综合多位专家及现场工作者的意见，建立了相关的数学模型及修正模型，通过计算机进行编程处理，从而确立了洋水矿区几种典型地质条件下各自的最优采矿方案，并针对采矿方案中存在的不合理参数进行了优化，为各矿区针对各类地质条件在采矿过程中及时调整采矿方法，摈弃习惯性的不合理采矿方法，充分回收矿山资源、降低矿石开采的贫化率、损失率，提高采场生产能力以及矿山经济效益具有重大意义。

As the innovation and combination is developing, our automobile industry has taken place some new change, which tends to centralize regionally. There are four most representative regions. The first is the area along the Bohai Ocean, which mainly contains Jilin, Liaoning, Tianjin and Beijing. The second is the area along the Changjiang River, which mainly contains Chekiang, Nanking and Shanghai. The third is the Northwest area, which mainly contains Hubei and Chongqing. The last is the area near the Zhujiang River, which mainly contains Guangzhou.

随着深化改革扩大开放，联合兼并和高速发展，我国汽车工业的格局发生了新的变化，表现出明显的地域集中特点，其中产量最大、最集中的四大区域是：一是环渤海地区，主要由吉林、辽宁、黑龙江、京、津两市三省的汽车工业集团和企业组成；二是长三角地区，主要由江浙、南京、上海的汽车工业集团和企业组成；三是西北地区，主要由湖北和重庆的汽年工业集团和企业组成：四是近年来迅速崛起的以广州为核心的珠三角地区。

The level of feed-water and drain system is comparatively high in the history of China.The research on the level of agriculture in Han dynasty indicates that the prosperity of cities in Han dynasty is based on the tender agriculture and the food supplies import is a constant state in the study area. There is no breakthrough in level of agriculture after Han dynasty,and it is an important reason that the city development in the study area is fluctuant in the history of China.From the end of Han dynasty to North and South dynasty,the climate change made the cold and arid weather keeping in the study area,and affected badly the agricultural outputs.The mode of land-use was transformed from the agriculture to the nomadism in this stage.The climate change made the desertization develop mightily and fast,and approach the scale of modern time in the study area in the North and South dynasty.

研究区汉代农业生产水平的综合分析表明，一方面，汉代城市的繁荣是建立在比较脆弱的农业基础上的，粮食等物品不断的外部输入是一种常态，汉代以后很长时间粮食生产水平并没有突破性的提高，这是研究区城市发展呈阶段性起伏的重要原因；另一方面，南北朝时期冷干气候的持续，对脆弱的农业生产具有重大影响，农业向牧业迅速转化，城市的区域农业支持系统受到严重影响，该时期沙漠化也强烈发展。

This article focuses on the line-line, line-region and region-region topological relations algorithm, which come down to the same question: whether there are intersections between line and line. The sweep-line algorithm was studied by many people, but has some deficiencies to be improved, in order to handle some special cases and increase program efficiency. My works as follows: rectangular envelope to reduce executive times , vector cross multiplication to determine intersection between line and line, coordinates and slope method to deal with some special cases. C program examples are showed together.(5) Finally, to prove capability and efficiency of the model and calculation method, some test systems are developed. For example, complex spatial topological relation query, parcels' exact area with the area of linear object reduced in land use, quality inspection to cadastral data according to topological rule, spatio-temporal change query of cadastral data.

将线线、线面、面面之间的拓扑关系实现的算法归结为线与线之间求交的基本问题；为处理一些特殊的拓扑关系情况，提高扫描线算法的效率，探讨了包络矩形粗滤、判断线线是否相交的矢量叉乘法、线节点重合或共线的斜率坐标判断法等改进方法；同时还设计了一种新的节点微小圆求交的算法，可应用于图斑与线状地物细分拓扑关系及地类面积的计算；（5）本文设计了实验系统，包括复杂对象的拓扑关系表达与计算程序、图斑地类面积的计算程序、基于空间拓扑关系规则的地籍数据库质量检查功能，以及时空拓扑关系和变化语义分析等原型，验证了拓扑关系表达模型和计算方法的可行性和实用性。

The results indicated that the radius vector of spinal canal is still a better index to diagnose central LSS, there is important value for the spinal cross-sectional area and thecal sac area.

研究发现椎管径矢仍是诊断中央椎管狭窄的良好指标，椎管面积和硬膜囊面积也具有重要价值。

The measured indexes include 10 members: the radius vector of sagittal spinal canal, the interligamentous diameter, the spinal canal cross-sectional area, the thecal sac cross-sectional area.

测量指标包括：矢状位椎管径矢、韧带间径、椎管面积、硬膜囊面积。

This paper expoles an algorithm about dearing surface defects detection by Support Vector Machines and principal component analysis that is the new branch of machine learning, in which the defective area and non-defective area are treated as two different textures and are sampled respectively to be learned, in order to reduce dimension, the image data can be processed by PCA.

提出了一种基于支持支持向量机和主成分分析的轴承表面缺陷检测算法，该算法把轴承中的非缺陷区域和缺陷区域分别看作两种不同的纹理模式，先利用主成分分析法对图像进行降维处理，然后用支持向量机方法对降维后的样本采样学习，然后进行分类判断。

Who? I never heard of him, Paul said, before asking teammate James Posey if he had heard of him.

赛后，科比说，他一直都是一名非常出色的射手，今天他打得很棒。

When I joined the company, I rotated around the different sections.

我加入这个公司时，轮换过几个不同的部门。