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Because of sharing characteristics with both Galliform groups, Tragopans are classified as partridges by some authors and pheasants by some others. In this study we set out to sequence the cytochrome b-gene of 19 species pheasants. and took the sequence for those 22 species from GenBank. We amplified 828 base pairs using the PCR technique. Primers designed by ourselves were based upon Galliform sequence data. Neighbor-joining method and Minimum evolution method were used to analyse cytochrome b sequences with Anhima cornuta and Kachuga dhongoka as outgroups.

通过PCR扩增鸡形目Galliformes黄腹角雉Tragopan caboti等10个属19个个体的线粒体DNA细胞色素b的部分基因,获取片段长度为828bP,以及从GenBank获取22种样本的相应序列,以角叫鸭Anhima cornuta和海龟Kachuga dhongoka为外群,分别用邻接法(Neighbor-joining, NJ)和最小进化法(Minimum-evolution, ME),对鸡形目和将雉科的15个属分为5个属及雉族和鹑族构建分子系统树,NJ和ME系统树中,都是角雉与雉类相聚。

The two most relevant anthropometric measurement for chair design is the popliteal height and buttock popliteal length.

最相关的两种体位测量椅子设计是腘高度臀部和膝部的长度。

Currently autografting is the most common clinical treatment method, although it has some obvious disadvantages, for example, limited amount and length of nerve for grafting, disfunction of donor site, mismatching, misorientation regeneneration, etc.

目前临床上最常用的治疗是自体神经移植,但是它存在着明显的缺点,如可供移植的神经数量和长度有限,造成供区的功能障碍,大小难以匹配和可造成错向再生等。

The benezoxazolocoumarin dyes substituted with methyl or chlorine on 5'-position showed bathochromic shift of the maximum absorption and fluorescence emission.

香豆素类荧光染料在5'-位有取代基可使最大可见吸收波长和荧光发射波长产生红移;当共轭双键长度增加,可使染料颜色变深(Ⅴ:544,Ⅵ:552)。

The sand fixed hedge has been using at Taiwan's coastally, how is the best desing for different from angle between main hedge and wing hedge, it is still no results. In this study, there are two part of experiment that are field study and wind tunnel. The field study is analysis by BSNE sand sampler and multi-layer anemometer at Yuanli coastally, the wind tunnel experimental that study different length and angle of hedge.

中文摘要堆砂篱於台湾沿海虽已被广泛使用,然堆砂篱是否需要大面积全面铺设,才能获得最显著功效;主篱与翼篱之间夹角应如何规划,才能达到最佳化设计,至今尚无具体结果,为能深入探讨本研究分为现地及风洞试验,现地试验以苑里沿海为试区,架设BSNE垂直集砂器及多层风速计等进行观测;风洞试验则依翼篱长度与角度从事模型吹砂试验。

Firstly the properties of L-MAX frequent itemsets is analysed.Then by extending FP-tree structure an ExFP-tree data structure is presented and the algorithm of ExFP-tree generated is given.According to the character of prefixing paths shared in FP-tree,ExFP-tree implements compressingly storage of transaction information with sharing the transaction information of descendant nodes.

ExFP-tree利用FP-tree共享前缀路径的性质通过共享子孙节点事务信息策略实现大量事务信息的压缩存储;最后基于FP-MAX算法,提出基于ExFP-tree的L-MAX频繁项集挖掘算法,核心思想是先根据L-MAX频繁项集长度约束性质进行前瞻剪枝再进行最大频繁项集挖掘,并通过回溯策略直接定位生成对应事务集。

Then the way is also studied to introduce some phase mismatching in OPCPA to detune the nonlinear crystal length for most stable output.

首先介绍了模拟光参量啁啾脉冲放大过程的多种计算模型,在此基础上提出了三步走逐步逼近算法,以确定OPCPA过程中最稳输出时所需的非线性晶体长度。

Many digenic interactions were detected for lint percentage and fiber length, and only few for boll number and lint index.

所涉及的性状中,影响衣分和纤维长度的互作位点最多,单株铃数和衣指的最少。

Result There was no significant difference to the number and length of parenchyma cell in the uppermost internode between Shuangdi Pei eS and Shuangdi S in meiosis and dikaryon pollen stages;there was significant difference to those in tikaryon pollen stage, and there was very significant difference to those in anthesis and the 7th day after anthesis,and on the 7th day after anthesis,the difference to the number and length of parenchyma cell in the uppermost internode between Shuangdi Pei eS and Shuangdi S was the greatest.

长穗颈双低培eS与双低S穗颈节间薄壁细胞数及细胞平均长度在减数分裂期和二核花粉期差异不明显,于三核花粉期差异达显著水平,始花当天和始花后第7天均达极显著水平,其中始花后第7天时两者的差异最大。

They spread horizontally and equidistantly over a large of 150km2 in urban and suburb districts.

一80.E,间距2—2.5km,长度约3—4km,最长约8km,近似平行等间距展布在城区和近郊Ⅸ的1 50km。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力