查询词典 comparable topology

A framework of temporal topological relationship representation based on point-set topology, which can be used to describe temporal topological relationships completely and uniquely, is presented.

同时，给出了时态拓扑关系完备且唯一的点集拓扑理论描述及其等价的逻辑谓词描述。

Based on the profound analysis for representation and reasoning of qualitative spatial relations, this paper proceeds with some originality innovation researches as follows:(1) Representation of spatial topological relations Based on the point-set topology and ontology, representation methods for spatial topological relations are researched.

在对定性空间关系表示与推理进行深入分析的基础上，本文进行了以下几方面的创新性研究：(1)空间拓扑关系表示以点集拓扑学和本体论为基础，研究了空间拓扑关系表示方法。

The Geographic Information System theory as a guide, point-set topology theory as basis, this paper uses object-oriented method to study on profile-based three-dimensional topological data model and data structure. By use of computational geometry, GIS, computer graphics images, 3DGM, the construction and dynamic updating methods of 3DGM are researched on the basis of amended OO-Solid data model.

本文以地理信息系统理论为指导，以点集拓扑理论为基础，采用面向对象的方法研究了基于剖面的三维拓扑数据模型和数据结构，采用计算几何、地理信息系统、计算机图形图像学等方法研究了基于修正后的OO-Solid数据模型的三维地质模型构建与动态更新方法。

Homotopy is a concept of algebra topology, and homotopy algorithm has been applied to solving the practical problems.

同伦是代数拓扑学中的概念，同伦算法已应用于一些工程实际问题的求解。

The modern study of space generalizes these ideas to include higher-dimensional geometry, non-Euclidean geometries (which play a central role in general relativity ) and topology .

现代研究空间推广这些想法，包括高维几何，非欧几里德几何（其中发挥核心作用，广义相对论）和拓扑结构。

As a consequence of an important theorem of algebraic topology, the invariants constructed by those diversity ways can be considered as identified via their unique isomorphisms. This concludes that the procedure of invariant construction gains a virtue of the model presented in this paper as being unrelated to whether there exists a symbolic represantation of images.

根据代数拓扑的重要定理，这些不同的构造方法所得的不变量在同构意义下是等价的，因此我们推论这种不变量的构造过程与图象是否有符号表示无关。

To do Topology Optimal Analyse on the Major Planet Carrier.

对大行星架进行拓扑优化分析。

The Major Planet Carriers Topology Optimization needs to submit to the intensity conditions when its Structure Stiffness and Nature Frequency change as little as it can.

大行星架结构拓扑优化需要在满足强度条件的前提下，使得结构的刚度、固有振动频率改变最小。

The new rT joint not only has two rotation axes that intersect at right angle,but also has another rotational degree of freedom which can be used to modify the assembly of other joints.This can change the mobility of the parallel mechanisms that assembled with the new rT joints and leads to two types of metamorphic paralllel mechanisms:In the first type,the mechanism changes its topology by turning the new rT joints in all limbs into different configurations which reconfigures the constraints within the limbs or the assembly of all the limb constraints.This change of mobility is completed by two cases.One is illustrated by a 3PS and a 3C parallel mechanism,by altering the rT joint into different configurations there will produce or reduce local degrees of freedom and thus change the constraits to the moving platform.This qualifies the 3PS and 3C to have variable mobility from 3 through to 6 and from 1 through to 6 respectively.

该铰链除了一般Hooke铰的两个轴线互相垂直相交的旋转自由度外，还增加了一个可以调节该两个轴线之一的姿态的一个旋转自由度，通过此自由度调节该rT铰到不同的装配构型，可以改变用其装配的并联机构的自由度，由此产生两类新型的并联变胞机构：一类是机构的各个支链中都有rT铰，该铰链的不同构型可以改变各支链对运动平台的约束或整个支链组的组合形式而改变机构的自由度状态，3PS和3C属于前者，通过调节rT铰到不同构型可以使其支链产生或消失局部自由度，从而减少或增加支链对运动平台的约束，使得并联变胞机构3PS和3C分别具有自由度从3变到6和从1变到6的能力；3P属于改变支链组组合形式的机构，其rT铰的不同构型将改变整个支链组的几何约束组合，使得并联变胞机构3P可以有三转动、三平动或三平移(来源：ABCded9de论文网www.abclunwen.com)一转动的自由度形式。

A network topology in which nodes are connected to a single cable with terminators at each end.

一种网络技术，节点连接到一根电缆中，端接器连接电缆的两头。

Although translator has turned from being a crystal ball by which the original culture can unrestrainedly penetrate to another crystal ball by which the target culture can freely traverse, the translator's personal embodiment, in the process of cognitive act, are still absent in translation studies. Translators are still subjects without body or simply disembodied subjects.

译者虽然由原语文化可以自由穿透的玻璃球变成了译语文化可以自由穿越的玻璃球，但译者认知过程中的个体体验在翻译研究中依然缺席，译者依然仅仅是一个没有躯体体验的主体。

Chillingly, he claimed our technology is 'not nearly as sophisticated' as theirs and "had they been hostile", he warned 'we would be been gone by now'.

令人毛骨悚然的，他声称我们的技术是'并不那么复杂，像他们一样，和"如果他们敌意"，他警告说，'我们将现在已经过去了。