Firstly, we propose and study the single-species discrete population model with stage structure and birth pulses.
在第二章，我们研究了密度依赖生育脉冲对单种群阶段结构离散模型的动力学行为的影响。
This pump is two-stage structure: with the pump cover with centrifugal work between clapboard wheel - the first level;
该泵为两级结构：泵盖与外隔板间装有离心工作轮——第一级；
Three different induction control are exerted on a single-species model with stage structure. The corresponding induction control domains are got.
对具有阶段结构的单种群模型实施了三种诱导控制，分别找到了相应的诱导控制区域。
Its removable seating and adjustable stage structure also provide additional opportunities for events such as fashion shows, weddings and other ceremonies.
可移动的座位和可调节的台阶结构也为诸如时装秀，婚礼和其他仪式的举办提供了额外的机会。
A bidirectional pulse power supply is designed, which adopts a two stage structure for process requirements. On this basis, its control system is also designed.
设计了一种采用两级结构来实现工艺要求的双向脉冲电源，在此基础上设计并实现了电源的控制系统。
On the base of Fuzzy set theory the factor and stage structure and mathematical model of quantitativemultifactorial evaluation for the forage value were put forward.
以模糊数学集合理论为基础，试用综合评判法，建立了牧草价值综合评价的因素层次结构、等级标准和数学模型。
In this paper, the sis epidemic model with stage structure consisting immature and mature is considered. The threshold is founded which the epidemic will become endemic or die out.
讨论了具有阶段结构的SIS传染病模型，给出了传染病最终消除和成为地方病的阈值。
A system of retarted functional differential equations as a predator-prey model with stage structure and dispersion is discussed. Conditions for global stability of the system are given.
讨论了一类带有扩散和具有阶段结构与时滞的两种群捕食系统，分析了该系统的非负不变性、边界平衡点性质及全局渐近稳定性。
After analyzing the feature of microwave sintering and the specialty of this system, we propose the computer two-stage structure to realize the reliable control of microwave sintering temperature.
本文在分析了微波烧结温度工作过程的特性和系统的特殊之处后，提出了计算机两级控制系统的结构对微波烧结温度进行了有效的控制。
The structure of the carved antler indicates its growth stage was spring or summer.
雕刻鹿角的结构表明其生长期为春季或夏季。
The third and final stage was to lift the entire structure into the air, by which time the hull was also supported from below.
第三个阶段，也是最后一个阶段，是把整个建筑升到空中，这时船体也在下面起支撑作用。
At this stage, we're talking about pure content and structure.
在这一阶段，我们谈论的是纯粹的内容和结构。
That next stage consists of the definition and population of the initial portfolio structure for the organization.
下一个阶段包括对于组织的最初项目组合结构的定义和填充。
At this stage, it is common to find that end-user requirements are documented rather informally, and they are not represented in detailed data structure.
在本阶段中，通常发现终端用户的需求是非正式记录的，且没有用详细的数据结构表示。
This stage will transform the hierarchical XML data about accounts into a tabular result structure.
(这个阶段将把XML结构的数据转换成表结构数据)。
Identification of an initial group of initiatives (a "pilot") to move into the next stage of portfolio structure development (optional).
确定最初的计划组(一个“试验”)，移动到项目组合结构开发的下一个阶段(可选)。
Because the target XML document structure contains a nested hierarchy with repeating elements, you must customize this XML Output stage to aggregate information for each account.
因为目标XML文档结构包含带有重复元素的嵌套分层结构，您必须定制此XMLOut put阶段才能聚合每个帐户的信息。
Before analyzing Lucene's index file structure, you should understand the inverted index concept. An inverted index is an inside-out arrangement of documents in which terms take center stage.
在分析Lucene的索引文件结构之前，我们先要理解反向索引(Inverted index)这个概念，反向索引是一种以索引项为中心来组织文档的方式，每个索引项指向一个文档序列，这个序列中的文档都包含该索引项。
The input data received by the aggregator should have the same structure as the output link, which is defined by the "CUST" stage.
聚合器接收的输入数据应该与输出链接具有相同的结构，这种结构由 “CUST”stage定义。
Even if we could solve protein-folding, the next stage would be to predict the structure of cells on the basis of the interactions of millions of proteins and other molecules.
即使我们能抓住蛋白质折叠的规律，下一步就是通过分析数百万蛋白质和其它分子之间的相互作用，来预测细胞的结构。
Rio was "pursuing a range of options, some of which are at an advanced stage" that would help create shareholder value and improve capital structure, it said in a London stock exchange announcement.
力拓在伦敦证券交易所发表的声明中说，它正在“寻求广泛的选择，其中一些趋于成熟”，那将有助于创造股东价值并改善资本结构。
The centralized structure is just a middle stage.
集中化的运作结构仅仅是一个过渡。
It never got to the stage of actually dollars and cents and structure.
但是并没有进入实际的价格洽谈阶段。
The whole level of the support industry group decides advanced stage of industry structure in a nation and region.
这个支柱产业群的整体水平决定了一个国家或地区产业结构高级化的阶段。
However, as our stock market still in initial stage, shortages still remain in stock issuing, capital structure and the practice system of the stock market.
但与此同时，我国的股票市场仍然处于初级阶段，在股票发行、股本结构、股市运行机制等方面都存在缺陷。
The study of steel structure is still at starting stage in our country, especially in the western region. Many questions are exist in the designing and constructing.
我国对多高层钢结构的研究还处于起动阶段，尤其在西部地区，研究力度还不够，设计和施工各个技术环节还存在不少问题。
Concentrating on the conceptual and structural stage, a hierarchical data structure of the logical assembly model was presented, and the key components of it were analyzed.
侧重于概念和结构设计阶段，提出了概念装配模型的层次化数据结构，并对其中的关键组成元素进行了分析。
But in sum, now at home and abroad, seismic reduction technique of hybrid control for aseismatic structure is still placed in experiment and theories research stage.
但从总体而言，目前国内外在抗震结构混合控制减震技术方面还处于试验及理论研究阶段。
A field experiment was conducted to study effects of root pruning at returning green stage on population structure, soil water and yield formation of winter wheat.
通过田间试验研究了返青期不同程度根修剪处理对冬小麦群体结构、土壤水分及产量形成的影响。
A field experiment was conducted to study effects of root pruning at returning green stage on population structure, soil water and yield formation of winter wheat.
通过田间试验研究了返青期不同程度根修剪处理对冬小麦群体结构、土壤水分及产量形成的影响。
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