系统树

The thesis also gives the estimated upper bounds of error decision probability. When the compressor is confined to be a lattice vector quantizer, a explicit mathematic equation for the rate of the performance convergence to the optimum is derived. On the other hand, Distortion Ratio Aproachs to the design of testing system on the basis of vector quantization are put forward, and methods for building the variable length decision tree as well as the fixed length one presented.

在算法方面，提出了失真比矢量量化检验器的设计方法以及可变长和固定码长分类判决树的生成算法；为了解决以矢量量化器为核心的处理系统运算量大，不易实时实现的问题，论文中引入了熵减的概念，在此基础上提出一种快速最近邻搜索编码方法，理论分析及实验结果均证实了这种算法的有效性。

The integrated "Master Plant Logical Fault Tree"method adopted in this estimation reflects the advanced tendency of modern and powerful evaluation of PSA. The VIRA system and the"Master Plant Logical Fault Tree of GNPS"have an advantages of not only easily and simple in operation, suitable for different levels of people, but also of practical value, especially in making sensitivity study and optimization analysis.

结合文章所需而发展的可视化的可靠性分析软件—VIRA系统及基于VIRA而构造的GNPS主逻辑故障树模型，不仅操作起来简单方便，适用于不同层次的人员，而且实用，便于进行敏感性分析及方案比较计算。

In the phylogenetic tree, the cattle and zebu were clustered together first, followed by the yak, buffalo, pig, human, mouse, and rat.

HSL基因外显子Ⅰ部分核苷酸序列进行多序列对位排列构建的各物种间分子系统进化树结果表明，普通牛和瘤牛首先聚为一类，再分别与牦牛、水牛、猪、人聚类，最后与大鼠、小鼠聚为一类。

The partial sequences of exon Ⅰ of hormone-sensitive lipase genes in yak, cattle, zebu, and buffalo were analyzed. Comparisons of these sequences and the deduced amino acid sequences with the homologous HSL gene and protein sequences in other mammalian species including pig, human, mouse, and rat retrieved from the GenBank were carried out and finally a phylogenetic tree was constructed using the partial DNA sequences of the HSL genes in all species.

在对牛科中4种动物即牦牛、瘤牛、普通牛和水牛HSL基因外显子Ⅰ部分核苷酸序列进行测定的基础上，与Gen- Bank中其他物种相应基因核苷酸序列、氨基酸序列进行了比对分析，并构建了牦牛与其他物种间分子系统进化树。

Seven major bacterial isolates were obtained and purified. Their 16S rRNA genes were amplified by PCR for sequencing and their identities were determined with homology comparisons. Five of the seven isolates belong to Actinomycetales including Kocuria KD139, Rhodococcus KD140, Rhodococcus KD142, Arthrobacter KD230, and Arthrobacter KD232; one is classified as Bacillus d KD178; and another one as Stenotrophomonas KD237. The phylogenetic tree was also constructed based on the analysis of 16S rRNA gene sequences.

通过对分离菌株的16S rRNA基因序列进行分析，发现其中5株细菌分别属于放线菌目的考克氏菌属(KD139)、红球菌属(KD140和KD142)和节杆菌属(KD230和KD232)， 1株细菌属于杆菌目的芽胞杆菌d属(KD178)，另外1株细菌属于黄色单孢菌目的寡食单胞菌属(KD237)；同时我们构建了系统进化树，确定分离菌株的相对进化地位。

Maximum parsimony tree constructed by using 42 capra hircus from 16 breeds, 11 wild capra from 7 species and sheep used as outgroup. The results showed that domestic goats and wild capra existed differently branches except Capra aegagrus.

用绵羊作为外群，16个家养品种的42条细胞色素b序列以及7个野生种的11条序列构建了系统发育MP树，结果表明除角〓羊外，家山羊、野生山羊分别聚在不同的枝上，但在家山羊群体内部出现了遗传分化，本实验中测定的所有家山羊个体聚为3大类。

Dendrogram divided 37 haplotypes into two major clusters, capra aegagrus clustered into lineage A, while capra falconeri clustered into other lineage. Lineage A is the predominance lineage of the 7 goat populations, while lineage B has a relatively small proportion.

系统发育树将37种单倍型划分为两个较大的分支，角猾羊1条序列聚入A分支，而捻角山羊则自成1支。A分支为7个群体的优势类型，B分支的影响相对较小。

The molecular results revealed that Tetraogallue has the most closed relationship with Coturnix and Alectoris.

用邻接法、最大简约法和最大拟然法构建了系统进化树，得到了基本相同的拓扑结构。

An orthoganal design with four terrain factors under two levels was carried out to systematically analyze the law of variation on diameter, height and trunk's basic volume weight of 13-year-old Alnus cremastogyne from plantation.

摘 要：本文应用四个地形因子在两个水平下的正交试验设计方法，系统分析了13年生桤木人工林胸径和树高生长以及树干公定容重的变化规律。

Armillaria luteo-virens is a ectomycorrhizal fungus symbiotic with some species of Kobresia in Tibet Plateau, China. A strain was recently isolated from fruitbody tissue of the fungus. To determine whether the strain is the pure culture of the fungus, the internal transcribed spacer region and the first intergenic spacer region (IGS-1) of the nuclear ribosomal DNA of fruiting body and the isolated strain were sequenced and compared. Further, the 5.8S/ITS and IGS-1 sequences of the species were BLAST matched with GenBank database on homology and a phylogenetic tree was constructed based on 5.8S/ITS sequence and two phylogenetic trees were constructed separately based on two IGS-1 sequences.

首次从采自青藏高原、与高原牧草嵩草属Kobresia草本植物形成外生菌根的黄绿蜜环菌Armillaria luteo-virens子实体中分离获得一组织分离菌株，运用rDNA-ITS和rDNA-IGS-1测序技术对该组织分离菌株是否为黄绿蜜环菌的纯培养菌种进行分子鉴定，并基于黄绿蜜环菌的5.8S/ITS和IGS-1序列进行核酸序列数据库GenBank同源性检索比对、构建系统发育树。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失