系统发生

Ultrapure dialysis water can improve renal hemophthisis,hypertension and the micro inflammation condition greatly.

超纯透析用水能显著改善维持性血液透析患者的肾性贫血、高血压以及微炎症状态等，同时表明超纯透析用水能降低心血管系统的并发症发生。

Leukemia is one of the malignancy of the hemopoietic organs,which is often originated from certain phase of differentiation of hematopoietic cells and show disorders of differentiation.

白血病是人类常见的血液系统恶性肿瘤，它一般发生于造血细胞分化的某个阶段，表现为细胞分化障碍。

Finding the frequency of occurrence of heterogenicity among people and making the method of examining the heterogenicity standardized by setting up the data of mitochondrial DNA will be of great sig...

通过建立mtDNA数据库，找出异质性在人群中的发生频率，并使检测异质性的方法标准化，对线粒体DNA的更有效检测具有重要意义；线粒体DNA编码区多态性位点在提高线粒体DNA系统效能中具有独到之处。

Because distribution boundary between the East Clade and the West Clade was almost the same for the division line of physical environmental heterogenicity between the East and the West within the East Asia (division line between the second and third stage in accordance of topographical disjunction), it was speculated that physical environmental heterogenicity between the East and the West had played a key role in the phylogeny of the complex.

rDNA ITS区比较序列分析和AFLP分析都表明粉花绣线菊复合体各变异类型间已发生了一定程度的分化，确认了基于形态证据对粉花绣线菊复合体内各变异类型的认知，同时也表明ITS序列和AFLP是探讨绣线菊属或亚科种下或近缘种间系统发育关系的有效分子标记。

Tragedy often occurs when governments come along in hobnailed boots and trample over these informal systems, as happened in the Sahel during a dreadful drought in the 1970s.

上上下下。悲剧常常发生在政府开始镇压这些非正式的系统的时候，比如1970年代撒赫勒严重的旱灾。

This paper analyzes following issues by using Geographic Information System,(1)the characteristics of immigratory population and migratory population in cities,(2)inflow spatial features for migrant workers in Beijing and Guangdong respectively,(3)situation prediction for migrant workers reflunce to Beijing, and (4)spatiallg distributing features for SARS along traffic lines.

利用地理信息系统技术对中国内地人口流动空间规律进行了初步研究，主要包括：(1)内地城市人口迁移规律，(2 )流入北京、广东两地民工流动状况的空间分析，(3)在北京SARS发生期间民工回流的态势等；SARS沿交通线分布特点。

The study show that symbol timing offset and sampling frequency offset would introduce inter-symbol interference, frequency offset of carriers would result in intercarrier interference.

然后，就同步误差对系统性能的影响进行了详细分析讨论，分析表明，定时偏差和采样频率偏差将会引入码间干扰，载波频率偏差导致载波间干扰的发生。

If the protein precipitates before it can be applied to the membrane, for instance, the entire system will become highly unstable and almost totally irreproducible.

例如，若蛋白在用到膜上之前就发生沉淀，那么整个试剂系统就高度不稳定且几乎完全不可再生，可用来吸附到膜上的溶解蛋白的量就因此急剧下降。

Moreover, it is easier to control the temperature in the jacketed stirred tank than in the fluidized bed.

而通常结垢问题都发生高温系统，如热交换器等，且本实验室之前在探讨有关磁场对结垢的影响方面，都是在常温下进行，所以本实验将就此重要的变数-温度进行讨论，又由於实验在搅拌槽中进行会比在流化床中进行更容易控制温度，故本实验将在搅拌槽中，探讨磁场与温度对文石成长速率的影响。

Genetic diversity of Juglans are summarized from the level of DNA molecular, the somatic embryogenesis, the establishment of genetic transformation and transgenic research in Juglans. Major

从DNA分子水平系统综述了核桃属植物遗传多样性的研究概况，总结了核桃属植物体细胞胚发生、遗传转化体系的建立及转基因研究进展，分析了核桃属植物分子水平遗传多样性与转基因研究过程中存在的主要问题，并对其应用和发展前景进行了展望。

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。