系统发生的

Thus, it is reasonable to speculate that impairment of lung tissues resulting from the imbalance between protease and antiprotease system due to α〓AD may be predisposed to the development of lung cancer, and may also be related to the susceptibility to lung cancer.

AT活性降低使个体发展为肺癌的危险性增加。我们有理由推测由于α〓AT缺乏导致的弹性蛋白酶/抗弹性蛋白酶平衡系统的失衡，进而产生的肺组织损伤可能是肺癌发生的前期病变和重要基础。

As noted in a later section, Processes and lifecycle , an activity that's not technically "killable" by this definition might still be killed by the system - but that would happen only in extreme and dire circumstances when there is no other recourse.

像下边 Processes and lifecycle 章节提到的，上边定义的技术上讲不会被结束的活动还是有可能被系统结束的--但只是在极端的没有一点其他资源时才会发生。

Moreover, CoI gene was more conservative and a lower evolutionary rate than Cyt b gene. CoI gene was an effective marker in analysing the phylogenesis of families in Passeriformes. It can be used in identifying the species of Passeriformes, but it was revealed that CoI gene was more suitable to identify the phylogenetic relationship of avian family unit than Cyt b gene, and CoI gene can be a molecular marker to identify avian species. But in species identification, CoI gene was less stable and accurate than Cyt b gene. We suggested youd better employ the other marker if you have the CoI gene only.(2) In the phylogenetic trees of birds from Lanius, L.

比较分析了雀形目6科15种鸟类的细胞色素b全序列和CoI基因部分序列，结果显示细胞色素b和CoI基因序列的变异位点分别为454个和366个、简约信息位点为337个和303个，而且线粒体CoI基因比细胞色素b基因略微保守、进化速率也较低；CoI基因在确定雀形目科级阶元之间的系统发生关系方面是一种有效的分子标记，同时它也能够用于雀形目鸟类的物种鉴定，但在物种鉴别方面不如细胞色素b基因稳定、准确。

The phylogenetic analysis of these two nonmarine crabs together with intertidal, supratidal and swimming crabs based on portions of mitochondrial 16S rDNA sequences suggested that Grapsioidea, Ocypodoidea, Potamoidea and Portunoidea arose from a common marine ancestor, and the estimated divergence time are similar.

基于线粒体16S rDNA部分序列，对这2个类型的非海洋蟹类与潮间带蟹类、海洋蟹类之间的系统发生分析提示，方蟹总科、沙蟹总科、溪蟹总科和梭子蟹总科的蟹类起源于一个共同的海洋蟹类祖先，它们彼此之间的歧异时间基本一致。

The birds of Passeriformes are the group which are the largest number, the most species, the highest station of evolvement and the broadest adaptive radiation of existent aves. The traditional taxonomy were onlyaccording to morphologic and behavioral characters, however their morphologic and behavioral characters are so complicated that we could not differentiate some species easily. Therefore we had some taxonomic research by molecular means in order to supply traditional taxonomy.

雀形目是现存鸟类中种类最多、数量最大的、演化地位最高、适应辐射最广的类群，传统的分类方法仅依据形态和行为特征来划分，但由于该类群的形态及行为特征复杂使得部分种类不易区分，因此有必要依据分子手段研究其系统发生关系、以盼能对经典的分类方法给予补充。

Even studies of phylogenetically disparate species, such as songbirds, can suggest to us some things about what we humans are doing and, conceivably, how we might be doing them.

甚至是对那些在系统发生上和我们人类在本质上根本不同的动物的研究，比如对鸣禽的研究，也能够向我们揭示出一些关于&人类在做什么&和&人类是怎么做的&这样的信息的。

In general , ba stars belong to binary system , and their heavy - element overabundances are due to the accreting material from the companions ( the former tp - agb stars and the present white dwarfs ). carrying out a series of monte - carlo simulations , the changes of orbital elements of binaries are recalculated for wind accretion scenario of the total angular momentum conservation

研究表明，钡星应该属于双星系统，其重元素超丰来自双星吸积，它的伴星已经经历了s -过程核合成，而且由在以前发生的同其伴星(以前是agb星，现已演化为白矮星)的质量传输过程中，从伴星那里获得了富含重元素的物质，这样造成了钡星的重元素超丰。

Through scheduling process analysis of periodic task, the waiting limit formula of each task in ready queue was obtained while guarantees its deadline. In addition, some properties, such as final preempting time was deduced and the necessary condition of periodic tasks preempting behavior was described quantitatively. Based on them, a micro scheduling preemption model for periodic tasks in ready queue was put forward, which decreased the number of preemptions and optimized system performance through changing the preempting sequences.

通过分析周期性任务的调度过程，得出在确保任务不错过截止期条件下，各个任务在就绪队列中可等待的最长期限计算公式，并根据公式推导出任务满足截止期的最后抢占时刻等属性，从而定量地刻画了周期性任务抢占行为发生的必要条件，提出了一套对周期性任务的就绪队列进行微调度的抢占模型，通过改变抢占关系来减少抢占次数、优化实时系统性能。

The recovery strategy for the customer time window disruption is given,to guide to design the other recovery strategy for the VRPTW disruption;By setting the single dummy depot or the multiple dummy depots,the transition that the jump-offs of vehicles on the way are reposited to the depot is proposed,making the algorithm for the VRPTW solve the disruption recovery model as before;the customer time window disruption is analyzed,to help measure the other deviation for VRPTW;A new handling constraint method based on genetic algorithm is designed,avoiding the difficulty of selecting the penalty factor in penalty strategy and makes the handling constrain simplify.

本文给出了客户时间窗变动的扰动恢复策略，可以指导设计VRPTW其他扰动恢复策略；通过设定虚拟单车场或虚拟多车场，将干扰发生在途车辆的起点复位到车场，使VRPTW求解算法同样可以用于处理扰动恢复模型；对客户时间窗变动对系统造成的干扰进行了度量，为VRPTW其他扰动度量提供了指导；设计了一种新的约束处理方法，避免了惩罚策略中选取惩罚因子的困难，使得约束处理问题简单化。

Focusing on severe wheel flange/rail side wear and a series of derailments of tramway vehicles with independently rotating wheels, an investigation has been carried out by comparison against solid wheelsets. Based on MATLAB/SIMULINK and a self-developed simulation model considering the IRWs, derailments have been simulated with results of possible causes of such derailments. Efforts have been made to fulfill comprehensive treatment of controllable factors such as the wheel profile, lubrication, clearance between check rail and high rail etc.

针对目前具有独立轮转向架的低地板面轻轨列车所发生的脱轨问题和轮缘严重磨耗间题，从轮轨系统的基本关系出发，分析了传统刚性轮对与独立轮对的导向机理和特点，建立了具有独立轮特点的计算机仿真模型，采用MATLAB/SIMULINK仿真工具计算模拟了实际脱轨现象，并对各种可能导致脱轨和轮缘磨耗的因素进行了分析。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。