查询词典 breadth

Levins's and Shannon-Wiener niche breadth formula and Pianka's niche overlapping formulae are adopted to quantitatively study the niche breadths and overlapping feathers of major plant species in Malan forest standing in the Loess Plateau as well as analyze the niche patterns of these major plant species following their successions.

应用Levins、Shannon-Wiener生态位宽度公式和Pianka生态位重叠公式，定量研究了黄土高原马栏林区主要植物种的生态位宽度和生态位重叠特征，同时对主要种在演替系列上的生态位变化规律进行了分析。

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。

In its long development, Naturalism continually extends the literators'character in art and breadth of mind in aesthetics, and creats the various styles and features of landscape paintings of the past dynasties.

自然观在漫长的发展过程中，不断扩展着文人的艺术品格与审美心胸，造就了历代山水画的不同风貌。

The spatial niche breadth of mango anthracnose was found to have a higher index, indicating a full use of spatial resource by the mango anthracnose.

结果表明芒果炭疽病的空间生态位宽度指数比较大，对空间资源利用较充分。

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 indexes of habitat niche breadth of mango anthracnose were 0.9508 at the fruit stage, 0.9412 at summer shoot stage, 0.9653 at autumn shoot stage and 0.8497 at florescence stage.

果实期、夏稍期、秋稍期、花期芒果炭疽病的生境生态位宽度指数依次为：0.950 8、0.941 2、0.965 3、

Mapping of QTLs underlying grain length, grain breadth and grain weight was performed, using the complete SSR maker linkage map (the other six chromosomes were constructed by another student) and the statistical method of composite interval mapping. A total of 13 QTLs were detected, 5 for GL, 5 for GB and 3 for GW QTLs g13 and gw5 showed the largest effects on GL and GW respectively, explaining 17.36% and 21.33% of phenotypic variances of the traits.

利用完整的SSR标记图谱（另外6条染色体由另一位研究生完成，应用复合区间定位法（Composite Interval Mapping，简称 CIM；Zeng，1994；Wu等，1996）对影响稻谷粒长、粒宽和粒重的QTL进行了全基因组扫描。

Master plan adjacency matrix storage structure; Implementation plans of the two traverse : depth-first traversal and breadth traversal priority.

掌握图的邻接矩阵的存储结构；实现图的两种遍历：深度优先遍历和广度优先遍历。

The structural melanges up to 14km in breadth at most is discovered, for the first time, during the 1:250000 geologeal survey in the west of Nima county, North Tibet.

在藏北尼玛县西边阿索一带首次发现最宽约14km的阿索构造混杂岩带。

The British Business Awards have shown themselves this year to be truly a pan-China affair, with applicants from the length and breadth of China.

&英国商业大奖&本身表明今年会是一次真正的&泛中国&活动，申请者遍布中国。

The statistical analysis of this large set of mutations has led us to propose a diagnostic strategy that should help with the molecular work-up of optic neuropathies.

这一大系列基因突变的统计学分析引导我们提出一个诊断策略，可以帮助我们对视神经病变进行分子学的诊断检查。

The results show that the pipe grouting changes the mechanical parameters of surrounding rocks to achieve the security of engineering objectives by reinforcing surrounding rocks and bolcking the water.

研究表明：小导管注浆一方面改变了围岩的力学参数，另一方面利用浆液的固结特性可以实现堵水和加固围岩的工程目标，使隧道在开挖过程中的安全得到保障。