查询词典 systematic tree

The phylogenetic tree of fish IgH conserved region contains two major branches of teleost and elasmobranch, and snakehead IgH is most closely related to pufferfish. The phylogenetic tree of IgL conserved region shows three major branches, and snakehead IgL locate as a branch of IgL1A.

根据IgH和IgL恒定区氨基酸序列构建系统进化树，鱼类IgH形成硬骨鱼和软骨鱼两大分支，其中乌鳢IgH与河豚IgH的亲缘关系较近；硬骨鱼IgL系统树显示3个主要的分支：L1、L2和L3，乌鳢IgL位于L1分支的L1 A亚类。

To solve QoS-constrained routing problem and the problem of balancing network load, an algorithm based on tabu search is proposed, which has a better ability of balancing the cost of the multicast tree and the network load; upon this algorithm, a new algorithm based on degree-constrained and load-balance is proposed, which has a nicer integrative performance on equipoise the cost of multicast tree and the load of links and nodes.

2针对网络负载均衡的QoS问题，提出基于禁忌搜索的负载均衡QoS组播路由算法，算法能平衡组播树代价和网络链路负载均衡状况；在此基础上提出了基于度约束和负载均衡的QoS组播路由算法，算法在满足QoS约束的基础上，均衡了组播树代价、网络链路负载和节点负载三者之间的关系，综合性能良好。

In addition, several RC tree modals about delay of transmission line are compared and analyzed. A new method using Euler formula is brought forward to solve the RC tree, which leads to higher efficiency with the same accuracy.

同时，还对关于传输线延迟的几种RC树模型进行了比较分析，并提出了一种新的Euler方法，仿真表明，这种方法速度更快，效率更高。

According to the deficiency of event tree/fault tree analysis, a new probablilistic safety assessmet method based on Bayesian networks is proposed.

摘要针对传统的事件树／故障树分析方法的局限性，提出了基于贝叶斯网络的系统概率安全评估方法。

According to the deficiency of event tree analysis in safety evaluation,this paper introduces a dynamic event tree analysis method and the mathematical description is given as well.

针对传统的事件树分析方法在安全性评估中的局限性，在动态事件树分析方法的基础上，给出了其数学描述，并将其应用于导弹安全自毁系统安全性评估中，以描述导弹安全自毁过程中的动态特性。

If modifications occur to the tree during event processing, event flow will proceed based on the initial state of the tree.

如果在事件发生过程中结构树发生可变化，事件流还是会按照结构树的初始情况继续下去。

The quantitative method for risk analysis of city natural gas pipeline is put forward based on event tree analysis and fault tree analysis.

单位：1。重庆大学城市建设与环境工程学院，重庆 400045； 2。

At present the fault tree or event tree method is generally applied to calculate the probability of ship grounding, and the certain probability is used to represent the failure probability of basic event.

目前，计算船舶搁浅的概率时常采用故障树和事件树方法，以确定的概率数表示底事件的发生概率。

The study was supported by National Nature Science Foundation of China of ""Biological foundation study of electrical indexes assessing tree vigor"". The mechanism of tree's leaf and stem capacitance and the application of electrical indexes under environmental stresses were studied. The main conclusions are summarized as following:(1) The leaf capacitance had significant positive correlations with leaf exosmosis electro conductivity, exosmosis percentage and leaf absolute moisture content, had significant negative correlations with leaf electrolyte electro conductivity and had no correlations with leaf relative water content.

本研究在国家自然科学基金"林木健康状况评价的电指标生物学基础"的支持下，对树体叶片电容和树体干部电容的机理及外界胁迫因素作用对树体电指标的影响进行了初步研究，研究的主要结论包括：(1)树木叶片电容与单位质量叶片离子外渗液电导率、叶片细胞离子外渗百分率及叶片绝对含水率呈显著的正相关关系，与单位质量叶片总电导率呈显著的负相关关系，与叶片相对含水率的相关性不显著。

The second, the third and the fourth degree of fallen tree snag, and CWD account for 86 12%, 78 40% and 79 65% wlume of the total volumes of fallen tree, snag and CWD respectively. The water-absorption and water-losing process is the exponential function of the time.

CWD的腐朽级以处于第Ⅱ、Ⅲ和Ⅳ级为主，Ⅱ、Ⅲ、Ⅳ级的倒木、站杆和总的CWD蓄积量分别占倒木、站杆和粗木质残体总蓄积量的 86 12 %，78 4 0 %和 79 6 5 %，CWD的吸湿和脱湿过程是时间的指数函数。

If you were not , and OS X just booted normally, have no fear.

如果你没有，和OS X刚刚启动通常，没有恐惧。

I only want to preserve our all .

我只想保存好我们的一切