可建立的

The Adjacency Matrix of the Directed Graph is easy to build, but the reach-relation of factors is more useful when building the structure model.

有向图的邻接矩阵比较容易建立，但是在建立结构模型时，更有用的是要素间的可达关系。

It is very necessary for our country to bring into effect the practice of environmental accountants,since there have been a lot of serious problems,such as the destruction of the environment,the unbalance of the ecosystem environmental pollution.

我国经济迅速发展的同时，资源破坏、环境污染、生态失衡等问题随之产生，在经济发展与环境保护之间建立良性的互动循环关系，建立生态型国家，是可持续发展战略的重要内容。

Geraldo Solis Key words: admissibility, law, Panama Before answering the title question, let us make a short review of the rules, both of the constitutional and legal order, that may have some incidence on this matter.

Geraldo Solis 关键词：可容许性，法律，巴拿马在回答标题问题之前，让我们做短的回顾规则，宪法和法律命令，也许有某一发生在这个问题上。首先，我希望援引共和国的政治宪法，在它的文章第40 里建立："Every 人是自由行使任一个行业或换依于章程由法律建立关于能力、道德、pre.vision 和社会保险、协会、公共卫生、联合主义和约束quotations。"

Therefore, it has a highly important significance to carry out theoretical and practical research on comprehensive evaluation of county sustainable development.This paper analyses the internal and international research on the history and actuality of comprehensive evaluation of regional sustainable development, and summarized its theory and methods, then investigates it gropingly.

本文在分析了国内外区域可持续发展综合评价的研究历史和现状的基础上，对区域可持续发展综合评价的理论与方法进行了比较系统的总结和探索性的研究，结合县域的特点，建立县域可持续发展综合评价指标体系。

The main results include:(1) Ecological economy and landscape ecology are merged and applied in sustainable development evaluation of Beijing mountainous region. The landscape measure of regional sustainable development is to build a model landscape with reasonable structure, efficient function and harmonic relationship of ecological system.

主要取得的研究结果：(1)提出了生态经济理论与景观生态理论相结合进行北京山区可持续发展评价，区域可持续发展的景观途径就是将人类活动对于景观演化的影响导入良性循环，建立一种由结构合理、功能高效、关系协调的生态系统组成的模式景观，以实现区域可持续发展。

ABSTRACT In this dissertation, fault-tolerance of redundant manipulators is thoroughly investigated. First, inherent relationship between the dexterity and fault-tolerance of single-redundancy manipulator is discussed. Both the manipulability and the relative manipulability are utilized for measuring the kinematic fault-tolerance of the manipulator with one joint failure. Furthermore, the relative manipulability is used for measuring dexterity loss resulted by one joint failure, and the relationship between the fault-tolerance measurement and null space vector of Jacobian matrix is established.

本文对冗余自由度机器人的答错性问题进行了深入的分析和迭付：首先研究了单冗余度机器人运动学灵活性与容错性之间的内在关系，提出以故障构形的可操作度和相对可操作度来度量机器人的运动学容错性，用相对可操作度来度量关节故障给机器人操作灵巧性造成的损失，并建立了容错性度量指标与Jacobian矩阵零空间向量之间的关系。

The divisible semiring congruence on S was characterized. A one-toone, inclusion-preserving mapping from the set of full, closed, self-conjugate subsemirings of S to the set of divisible semiring congruence on S was established. A result for the divisible semiring congruence lattice was obtained.

给出了这类半环上可除半环同余的一种刻画，建立了S上的可除半环同余与满、闭、自共轭理想子半环的保序一一对应，得到了可除半环同余格的一个结果。

Through this study, the sustainable management hierarchical system of forest ecosystem was established, providing the frame of forest sustainable management which given dominance to the basic hydrology ecosystem processing of mountain forest. At the same time, this research brought forward the "double-cycle" mode maintaining the integrality of Tianshan Mountain forest ecosystem. Within all these studies, on one hand, through the research about the regeneration response to different disturbance types, the scientific measures concerning restoration and rebuilding of fragmentized landscape were supplied. On the other hand, t

建立了森林生态系统可持续经营等级系统，为天山以森林生态系统基本水文生态过程为主导的森林可持续经营提供了框架；提出的天山森林生态系统生态完整性自维持的&双循环&模式为天山森林生态系统的可持续经营奠定理论基础，通过不同干扰方式下天山云杉的更新反应研究，为破碎化森林景观的恢复与重建提供了科学途径，通过对天山云杉分布格局及动态、更新格局、林冠干扰后的系列特征及相应的参数和反映种群生活史的生命表研究，为天山森林生态系统可持续经营景观水平的评价提供了基本参数。

Sub-models of the suspension, main and auxiliary frame and lifting mechanism were designed and assembled to be a whole dump truck model for dumping stability using Virtual Prototyping Technology.

根据自卸汽车的结构参数，应用典型虚拟样机软件分别建立前、后钢板弹簧、主、副车架及举升机构等部件样机子模型；选择合理轮胎—路面模型，建立了可分析自卸汽车作业稳定性的整车虚拟样机模型。

It is pointed out that the using of a tunable reactor to continuously compensate the filter' s detuning is a good approach to improve the filter' s performance.

设计了基于正交磁化原理的连续可调电抗器的实验模型，通过实验数据处理得到了可调电抗器的调控特性，并建立了可调电抗器的数学模型。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。