查询词典 breadth index

Based on the data collected from 8 plots and using Shannon and Simpson index, this paper calculated and analyzed diversity of Eupatorium catarium community in Hainan. And, niche breadth and niche overlap of E. catarium community were analyzed by using Levins and Pianka formulae. The results were as follows:(1)The diversity of E.

基于对海南儋州地区假臭草群落的调查，应用辛普森和香农指数测定了该地区不同生境类型的假臭草群落的生物多样性；并以各种杂草的重要值作为生态位计算的资源状态指标，应用Levins公式和Pianka公式计算分析了该地区假臭草群落各物种的生态位宽度和生态位重叠。

Finally, the characteristics and connection strategies of generator are presented, and based on subsume index, a breadth-first algorithm for mining non-redundant association rule is proposed.

最后，讨论了生成子的性质及连接策略，并在包含索引的基础上，给出了一种宽度优先的无冗余关联规则挖掘算法。

The niche breadth could be used as an index for evaluating the host specificity of gamasid mites, whose similarity in population distribution was largely related to that of their hosts, as well as their taxonomic distance.

生态位宽度可以作为评价革螨宿主特异性的定量指标，革螨种群分布的相似性与其宿主的相似性程度有着很大的关系，并受其动物分类学远近的影响。

Of conclusion leukaemia patient outside configuration of week blood white blood cell and structural change can pass VCS parameter to determine mensurably, if partial parameter is neuter distributinging breadth of bead cell volume, lymphocyte is average bulk is leukaemia the sieve is checked, diagnosed new index.

结论白血病患者的外周血白细胞形态和结构变化可以通过VCS参数定量地测定，部分参数如中性粒细胞体积分布宽度、淋巴细胞平均体积是白血病筛查、诊断的新指标。

Analyzed the intraspecific and interspecific relationship of Bruguiera gymnorrhiza and Rhizophora stylosa with commonly used niche calculation formula and Hegyi single-tree competition index mode, the results showed that they had extreme similar niche breadth and high value of the niche overlap index.

文章采用常用的生态位宽度、生态位重叠计测公式和Hegyi竞争指数模型，研究木榄和红海榄种内以及种间的相互关系。

Because of the depth and breadth of information being indexed, there is usually a delay, sometimes up to several weeks, between the time a site has been"spidered"and when it appears in a search index.

由于已编索引的信息的深度与广度，所以通常在&蜘蛛爬行过&站点的时间与出现在搜索索引中的时间之间有一个延迟，有时多达几周。

By using Shannon-Wiener index of niche breadth and Pianka index of niche overlap, this paper studied the niche characteristics of main plant species at different succession stages of vegetation in desert areas of north Gulang County, Gansu Province.

利用Shannon—Wiener生态位宽度公式和Pianka生态位重叠公式，计测分析了甘肃省古浪县北部荒漠植被主要植物种在不同植被演替阶段的生态位宽度和生态位重叠。

Applyed Levins Index corrected by Corwell and Wang gang Index, the niche breadth and niche overlaps of 20 species' in alpine meadow of Bayanbulak were measured at two resource dimension levels.

本文采用Levins提出经Corwell修正指数和王氏重叠指数，在土壤pH值和土壤全盐二维生态因子梯度上，测定了巴音布鲁克高寒草地20种主要植物种群生态位宽度和生态位重叠值。

The average of temporal niche breadth of mango anthracnose was 0.1177 according to disease index of leaf, while 0.2639 according to disease index of fruit.

时间生态位宽度指数分别为0.1177和0.2639，说明芒果炭疽病在时间维上的利用程度小，其发生和发展具有条件性；空间生态位宽度指数为0.7047和0.9040，病菌能够充分利用各空间资源；营养生态宽度指数为0.6662和0.5796，说明病菌可以侵染各品种，但品种间的抗病性有较明显差异，台农1号抗病性较强，红芒6号、凯特和白玉较易感病。

The cephalic index and the length-auri- culovertical height index obtained according to the measurement of the maximum length, the maximum breadth and ...

二、测量了196个左右两侧异区同型颅骨(即蝶顶缝型170个，异上骨型23个和额顳缝型3个)的头最大长、头最大幅和头耳高，并计算出头长幅指数和头长耳高指数，从而初步提出颅骨异区的各类型的形成可能与头长幅指数和头长耳高指数有关。

He and Nina moved to California and lived at 2005 Ivar Street, Apt.

他和Nina搬到加州，并在2005年伊瓦尔街，公寓生活。

Droperidol （ potently inhibits transfected HERGchannels and this is the probable mechanism for QT prolongation.

氟哌利多有效地抑制了转染的 HERG 钾通道，可能是 QT 间期延长的机制。