查询词典 spatial model

Spatial information is important for our society, but its multiformity, distribution and diversity make it very difficult to share spatial information inevitably.

空间信息是人类社会的重要信息，但其多样性、分布性和异构性等特点决定了空间信息的共享必然存在巨大的困难。

Spatial distribution pattern of larvae of Aleurocanthus spiniferus in citus garden was studied by means of some distribution parameters such as mean crowding, David and Moor's clustering index, index of patchiness, proliferation index, the distribution of negative binomial, Iwao's patchiness, the and Taylor's law. The results showed that the spatial distribution pattern of larvae under all densities appeared to be aggregation distribution, which is characterized by individual attraction and predominant individual group such as cored distribution pattern.

通过运用平均拥挤度m、 David和Moor的丛生指数I、聚块性指数mm、扩散指数C、负二项分布K值等多种聚集度指标和Iwao的m-m回归分析法、Taylor幂法则，研究了沙糖桔园柑桔黑刺粉虱若虫的空间分布格局，结果表明该虫在所有密度下均呈聚集分布，个体间相互吸引，分布的基本成分是个体群。

According to the spatial query technique and the topological predicates supported by ArcSDE,three methods are proposed for implementing topological join with ArcSDE,including Spatial Constraints Query Topological Join,Predicates Nested Loop Topological Join,and Filter-Refining 2 Phases Topological Join（FR2PTJ）.

根据ArcSDE提供的空间查询技术和拓扑关系谓词，提出了在ArcSDE平台下实现拓扑连接的三种方法，包括基于空间约束查询的拓扑连接方法、基于谓词的嵌套循环拓扑连接方法和过滤精化两阶段拓扑连接方法（FR2PTJ）。

The multiple unfolding that takes place is entirely dependent upon temporo-spatial overlapping, a continuous meeting in time and space, a sequence of events that must be precisely synchronized so that one phenomenon may act on another at the right time at the right place. The entire ontogenetic process must be seen as a precision schedule that determines the evolvement of a temporo-spatial pattern of interactions between cells and tissues.

多个未呈现的事件被呈现是完全依赖时间性空间的部分重叠，连续不断的会集在时间和空间上，一连串的事件可能同时被发生以便一个现象能在另一个正确的时间和地点活动，相互影响的一个时间性空间形式的发展在细胞和组织之间的整个个体发生过程必须被看作为一个精确的项目表。

The implementation of object algebra by relational operator and spatial operator with the support of relational index and spatial index was discussed and the setoriented access methods were studied.

在系统实现方面，我们着重讨论了面向集合的对象存取方式及基于关系索引、空间索引和底层关系操作及空间操作的对象代数的实现机制。

The spatial distribution of intra-node flux and source were approximated by a new orthogonal quadratic polynomial expansion, and a second-order polynomial provided the spatial expansion of transverse-leakage. The neutron angular distribution of flux and transverse-leakage were represented by the S quadrature set.

节块内横向积分通量、中子源的空间分布使用新的正交二次多项式近似；横向泄漏项的空间分布使用二阶多项式近似；中子通量和横向泄漏的角度通过离散纵坐标S

The peak radial spatial frequency and the halfpeak radial spatial frequency range corresponding to each item of the orthogonal polynomials were calculated.

利用傅里叶变换得到了Zernike多项式和环扇域内正交多项式的功率谱密度分布，以及正交多项式每项所对应的峰值径向空间频率和半峰值径向空间频率范围。

In general, the methods to percept and evaluate accessibility can be categorized into three: spatial separation, opportunity agglomeration, and spatial interaction.

对空间可达性的认识及测算方法总体上分为三种类型：空间阻隔、机会累积和空间相互作用。

In part two, the optical spatiotemporal pattern in ring optic cavity is investigated. Using delay feedback with spatial perturbation method, the system shows roll, square, hexagon, homocentric circle,"honeycomb"and"snowflower" pattern with different spatial perturbation functions. Different patterns can be coexist and compete each other with the same perturbation function, which is the new character of this optical system with delay feedback.

第二部分，利用延时反馈的空间微扰方法研究了环形腔中二能级介质的光学时空斑图的控制，在不同的微扰函数作用下，出现了滚筒状、四方形、六角形、蜂窝状、同心圆以及"雪花"状等不同的斑图，并且在相同的微扰函数下出现了不同斑图之间的竞争，这种竞争是我们发现的这一具有空间微扰的延时反馈非线性光学系统光学斑图的新特征。

Then the light intensity transmission of polarizing prisms with the incidence of random spatial light beam is studied. Both experimental and theoretical results indicate that the light intensity transmission of air-spaced polarizing prisms are affected more by the change of random spatial incident angle than dielectric-spaced polarizing prisms.

结果表明：胶合层间的多光束干涉对棱镜光强透射比的影响不可忽略，对于空气隙型偏光棱镜，由于空气隙间多光束干涉的影响，光强透射比随任意角度变化较大，而用胶合介质胶合的棱镜，其透射比对空间入射角不是很敏感。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。