tree structure的例句大全

XML is a new markup language and it has become the main tool of network data storage and exchange for its extendibility, tree data structure, separation of content and structure.

XML作为一种新兴的标识语言，由于其可扩展性、层次性表示数据以及内容与结构相分离等特点，已成为网络数据存储和交换的主要工具。

The object motion was represented using hierarchical data structure of quad tree.

采用四叉树的层次数据结构来表示物体运动。

First failure element in failure tree is resource of causing other elements failure, therefore reinforce first failure element is the most rational and economic method that ensure steel structure no failure.

失效树中的第一个失效元件是导致其余元件失效的根源，加强第一个失效元件，是保证结构系统不失效的合理、经济的方法；

A function oriented assembly design method has been brought forward via discussion about the problems existing in die design. The expression of function tree and a method for quick assembly design, the concept of func-tional structure unit and its generation have been expounded.

通过讨论当前模具设计存在的问题，提出了一种面向功能覆盖件模具装配方法，详细介绍了功能树的表达方法、零件的快速装配方法、功能结构单元及其生成。

It is studied how to create and organize BOM based product structure tree.

在这种产品管理模型的基础上，作者研究了基于产品结构树的产品BOM的构造和组织。

In, order to tap adequately the potential of stem form improvement and to provide theoretical foundation for mult-generation breeding, the possibility of selecting indirectly for stem form from the tree crown structure was studied.

为了充分挖掘干形改良的遗传潜力和为多世代育种提供理论依据，探讨了从树冠结构方面对干形实行间接选择的可能性。

in chapter 4, the model of cutting process simulation is obtained and a discrete model of work piece is set up using the data structure of constraint quarter-tree based on z-map, which is the innovation of this paper.

第四章针对切削过程仿真建模，利用基于z-Map思想的约束四叉树数据结构来建立工件离散模型，这是本论文的创新之处。

At the same time, the author deeply comprehends and expounds the operations when B-tree acts as an index structure and the way Berkeley DB used to be a rock-bottom database and implemented the Chinese dictionary based on B-tree index and Berkeley DB.

与此同时笔者深入了解并阐述了B-树作为索引结构的相关操作以及Berkeley DB作为底层数据库的使用方法，实现了基于B-树索引和Berkeley DB的中文词库。

The second one is the structure of tree species and the third class is the structure of age classes, their objectives are the maximum of total net revenue and of total timber yield respectively.

第2级树种结构优化模型的目标为各树种的纯收益之和最大；第3级龄级结构优化模型的目标为调整期内总收获量最大。

the network database of ornamental tree adopts the three-stratum structure design, i.e. its logical structure of program is comprised of user interface stratum, logical processing stratum of business, and data storing stratum.

观赏树木网络数据库系统采用三层结构设计，即程序逻辑结构分为用户界面层、业务逻辑处理层和数据存储层。

forest structure, individual quality, tree density and crown density, and structure and function of brush forest are used to construct a criterion to the lqbf.

判定低质低效林的依据是林分的结构、林木个体质量、密度和郁闭度、灌木林结构和功能。

For storage, we choose native XML model based storage. Data model is Tree model, and basic storage structure is B-tree on top of Object Oriented Database System.

对于数据存储，采用基于模型的原生XML存储方法，数据模型为树模型，以B树作为存储结构，底层存储采用面向对象的存储管理系统。

The Research Method of Quantifying the Structure of Urban Street Tree Populations

城市街道绿化树种结构量化研究方法

The research method of quantifying the structure of street tree populations was mainly described from the survey method selection and the calculation of the parameters of street tree populations.

本文主要从调查方法选择和群落结构特征参数计算两方面阐述了城市街道绿化树种结构量化研究方法。

The fossil's exceptionally well-preserved bone structure clearly puts it among feathered kin on the dinosaur family tree.

这具化石保存有异常完好的骨骼结构，因此可以将其明确地归入到恐龙家族中长有羽毛的一类。

The vertical structure of plant communities was clear and tree layer generally can be divided into the layer.

群落垂直结构层次分明，乔木层一般都能划分亚层。

The Comparative Study of the Street Tree's Structure of the Cities in Yangtze River Delta and Around

长三角及其周边城市行道树结构研究

A tree like structure of solution for the unit fraction sum tables 5

单位分数和表1解的树结构

The first box of this column is usually the navigation tree, which is a hierarchical view of the object database structure.

本列的第一块通常是导航树，一般是对像数据库结构一个纵向视图。

The results showed that the minimal relative wind speed in the windward area of firebreak tree belt with a sparse and tight structure was down to 70% below, but in the windward area of the ventilate structure was only down to about 80%.

结果表明：紧密结构与疏透结构的防火林带迎风面的阻风性能比较好，最小相对风速达到70%以下，而通风结构的阻风性能最小，迎风面的最小相对风速在80%左右。