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Incorporat ed with the sequences of other Suidae species obtained from GenBank, the phyloge ntic trees of Suidae species were constructed by Neighbor-Joining and Most Pars imony method.

结合从GenBank中获得的其他猪物种胞色素b序列,用邻接法和最大简约法构建了猪物种的系统发育关系,其结果显示苏拉威西鹿猪与其他猪物种为姐妹群的关系。

The plants of the family Tamaricaceae, a family with long history, have occurred in ancient Mediterranean region since Tertiary. Most of them are drought-telerant plants, which are suitable to be used as wind-preventing, forest-making and soil-holding plants. Ecologically, they are plants of great importance in reforming of desert and improving of climate condition in arid zone.

柽柳是一个古老的,起源于第三纪,包括亚洲中部的内的&古地中海&沿岸地区,该植物主要为旱生植物,其中大多数种是防风、固沙造林和水土保持的优良树种,对改造沙漠和改善气候条件具有重要的生态意义。

In this project we use microscopic and submicroscopic technology to research the sperm morphology and its ultrastructure of Leptobrachiinae, discuss the characters and taxonomics of spermatozoa and its utilization on the taxology, relatedness, phylogeny of Leptobrachiinae. this study will provide the new cues for the presented problems about the taxology and phylogeny in this field. Likewise,ultrastrucure of sperm are also disscussed.

本项目采用显微和亚显微技术,对拟髭蟾亚各属代表种精子的形态结构进行系统地研究,分析各属物种精子的形态结构特征,比较它们的异同,探讨该亚精子的分类;探讨精子形态分类与该亚物种的分类和系统进化的关系,为解决一些分类和进化问题提供精子学证据;并对重要种类精子的超微结构进行研究。

The generic data matrix and database of adult morphology of Tenthredinoidea were set up. The polarization of each morphologic character was concluded based on the evolutionary morphology, the inner group comparision and fossils analysis. The generic cladogram of Tenthredinoidea was calculated by PC586 computer using Hennig86 program. A new classification system for Tenthredinoidea was proposed based on the analysis of the cladogram. The tribal cladistic biogeography of the superfamily was analyzed using Diva program.

以成虫外部形态为主体建立和完善了叶蜂总属级形态特征矩阵和数据库;采用进化形态学—内群比较—化石比较分析方法推断了各个特征的演化极性;应用Hennig86程序以427个叶蜂属为终端分析单元,在PC586计算机上运算,得出了叶蜂总属间关系支序图,解析支序图,建立形式分类,提出了新的叶蜂总分类系统。

Family comprising solely the genus Trapa; in some classifications treated as a subfamily or tribe of the family_Onagraceae.

只包括一个菱属的;在某些分类被视为柳叶菜的亚

In order to know the evolutionary relationships between false vein, ISC, and VSC in Pteridaceae, 19 grnera and 82 species in Pteridaceae were sampled in this study; silica deposition types, ordinary epidermal cell morphology and veinal epidermal cells morphology of these species were surveyed. On the other hand, a convenient method was developed for this goal. In this method, a tabletop SEM with backscattered electron detector accompanied by post-cooling method was used.

为进一步探讨凤尾蕨假脉、脉间矽异形细胞与脉上矽异形细胞之间的关系及其於凤尾蕨内的演化,本论文选取19属82种的凤尾蕨植物,观察其叶表面之二氧化矽堆积型式、一般表皮细胞形态以及脉上表皮细胞形态;同时,也开发出利用侦测背向散射电子之桌上型扫描式电子显微镜配合后冷却技术(post-cooling method)之快速检测法,该方法利用背向散射电子讯号强弱与平均原子数(average atomic number, Z number)之相关性得到矽异形细胞与一般表皮细胞具有明显对比之影像。

Results there 9 species of rodents belonged to 4genus,2 family,2order were found and rattus norvegicus was predominated, followed by rattus flavipectus. four species of fleas belonged to 4 genus of 3 families were identified and the predominated species was xenopsylla cheopis. natural dead rat were not discovered; yersinia pestis and f1 antibody were not detected.

结果 在调查市县发现啮齿动物隶属2目24属9种,以褐家鼠为优势鼠种,黄胸鼠次之;食虫目动物11属1种;梳检鼠体检获鼠体蚤34属4种,以印鼠蚤为绝对优势蚤种;未发现自毙鼠;未分离出鼠疫杆菌及未检测出f1抗体阳性血清。

The distribution database and the geographic cladograms of the superfamily was set up. The distribution pattern of the superfamily was concluded and the origination centre of the superfamily was also discussed. We deduced that the South Asia is probably the origination centre of the superfamily. Two new index for zoogeographic analysis, index of high taxa distribution and the possibility index of the origination of a high taxa, were proposed.

应用Diva 软件研究了叶蜂总族级支序生物地理,建立了地理分布数据库和地理支序图,拟合了叶蜂总现代分布格局,推断出叶蜂总的起源中心位于东亚南部,提出了两个新的地理分析指数—类元分布指数It和类群起源可能性指数Io。

According to the energy conservation theory, BOM and CSIM4 were coupled. The BOM has no treatment on transmission solar radiation, which is of great importance when the model is adapted to Arctic Ocean. So the treatment was introduced to BOM. Through numerical test on different lead albedos, it was found that sea ice thickness is not so sensitive to lead albedo, which may be contribute to the lead occupies little ratio within multiyear sea ice pack. The reason of summer over-melt of arctic sea ice is the NCEP reanalysis downward solar radiation being larger than its reality. Then the arctic sea ice climate variability was simulated. Results showed that: simulated ice thickness change is in accord with the submarine investigated mean sea-ice draft changes. Simulated annually maximum ice thickness along the Eurasian continental oceans are closely related to the observed ones. The long-term mean simulated ice motion has the same features of the SSM/I derived ice motion. Sea ice extents in differential sub-regions have same trends comparing to the satellite passive-microwave data derived ones. Simulated ice concentration is closely related to the observed in the Arctic sub-regions. Sea ice flux through the Fram Strait involves ice concentration, motion and thickness. It is a composite criterion for sea ice model evaluation. The simulated ice area and volume export through the strait accord with the satellite derived or statistically reconstructed ones.(5) The simulated ice thickness climate variability and mean sea surface current of the coupled model were analyzed, results showed: the total ice volume in the Arctic Ocean has a significant decreasing trend. The volume variability is of a 10-year timescale oscillation, with two major periods of 12-13a and 18-20a. Mean ice thickness in the arctic sub-seas has different tendencies. It has an increasing trend in the Barents-Kara Sea and Baffin Bay-Labrador Sea, and decreasing in the others. The characteristic time scale of 7-10a wherein the river discharges leads the Fram Strait ice volume export is about the period that river water takes to be conveyed across the Arctic Ocean.(6) Using the simulated ice distribution in the Arctic Ocean and China precipitation, air temperature and SST in tropical key regions, the climate teleconnection were studied. Result showed: When the mean sea ice thickness is large in the central Arctic Ocean and Chukchi-Beaufort Sea , and small in the Barents-Kara Sea and Baffin Bay-Labrador Sea , the precipitation in South China, Tibetan Plateau, and the north part of Northeastern China are always smaller than normal, and v. v. When the mean ice thickness is small in CA, BC, East Siberian Sea and Greenland-Iceland-Norwegian Sea , and large in BL, The air temperature in north-eastern China, the southern of Tibetan Plateau, and Hainan Island, are always lower than normal, and v. v. In addition, when the sea ice is thick in BC and BL, the SST is larger in the middle and eastern Pacific Ocean, and is smaller in the tropical Southeastern Indian Ocean.

由于BOM没有考虑透射太阳辐射的物理过程,研究表明透射太阳辐射对北冰洋的能量收支起到重要作用,因此在BOM模式中引入了对透射太阳辐射的处理;通过对不同水道反照率的数值试验表明海冰厚度对水道反照率的敏感性不强,可能与海冰区水道面积占的比率很小有关;而模式模拟的北极海冰夏季&过度融化&主要源于NCEP再分析资料提供了偏大的太阳短波辐射;对北极海冰的气候变率进行了模拟研究,结果表明:模拟的海冰厚度变化与潜艇探测的海冰吃深度变化具有一致性;模拟和观测的亚欧大陆沿海的年内最大海冰厚度有很好的相关;模拟的海冰移速与长期平均的卫星反演的海冰移速具有相同的速度分布特征;模拟的各个海区海冰面积的变化趋势与卫星反演资料分析的结果基本一致;模拟与观测的主要海洋分区的海冰密集度具有很好的相关:弗瑞姆海峡的海冰体积和面积的输送涉及到海冰密集度、厚度和移动速度,是判断模式模拟能力的一个综合的指标,模式模拟的结果与卫星反演或重建的面积输送、体积输送具有很好的一致性;(5)分析了模拟的北极海冰厚度的气候变率及气候平均表层海流场,结果表明:北极海冰的总体积有显著减少的趋势,北极海冰总体积的变化具有10a际尺度振荡的特点,存在18-20a和12-13a两个主周期;北极海冰的平均厚度在各个海区的变化趋势不同,在巴伦支—喀拉海和巴芬湾—拉布拉多海地区海冰厚度有显著的增加趋势,而其它海区存在减少的趋势;通过对模拟的气候平均表层海流的分析表明,北极河流流量超前弗瑞姆海峡海冰流量7-10年的特征时间尺度与表层海流的气候分布存在着必然联系:(6)利用模拟结果以及中国降水、气温和热带关键区SST资料,讨论了北极各海区海冰平均厚度与中国降水、气温以及热带关键区SST的关系,结果表明:在北极中心海区和楚奇—波弗特海海冰厚度偏大,在巴伦支—喀拉海以及巴芬湾—拉布拉多海海冰厚度偏小,则中国降水在华南地区、青藏高原和东北北部降水偏少,反之相反;在北极中心海区、东西伯利亚海、楚奇—波弗特海以及格陵兰海海冰厚度偏小,在巴芬湾—拉布拉多海海冰厚度偏大,则在中国东北地区、高原南部地区和海南岛附近气温偏低,反之相反;另外,北极楚奇—波弗特海和巴芬湾—拉布拉多海海冰厚度偏大时,在热带中东太平洋海温偏高,而在热带东南印度洋海温偏低。

An illustration of a smiling Berlusconi, who weathered a summer of scandals over his relations with an 18-year-old underwear model and allegations he slept with a prostitute after a party, emblazons the cover of the Rolling Stone's December issue, against the backdrop of the Italian flag.

滚石》杂志十二月刊以贝卢斯尼为封面人物,封面上的贝卢斯尼面带微笑,背景是意大利国旗。今年夏天,贝卢斯尼陷入一系列丑闻。据说他与一名18岁的内衣模特有染,并在一次派对后与一名妓女上下住着她的儿子儿媳,不过,他们去南京工作了,楼上则是她一个人照看两个孙女的地方。本分工作外,我有个习惯——收集床。

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推荐网络例句

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。