查询词典 indices

Sympegma regelii community, a rangeland desert vegetation, has the highest Shannon-Winner species diversity indices (1.706); the communities of Haloxylon ammodendron and Ephedra przewalskii, which have obvious feature of desert vegetation, are in the middle in species diversity indices (0.875-0.890); the communities of Calligonum mongolicum, Populus euphratica, Tamarix ramosissima and Glycyrrhiza inflata, characterized by desert forest of which saline desert bushes and saline meadows are scattered in the communities, have lowest value of the species diversity indices (0.079-0.495). 3 The structure of desert plant community is dominated by the bush layer. The species diversity indices of bush layer (0.769-1.451) is much higher than that of herb layer (0.193-0.254), and the diversity in herb layer is strongly influenced by bush layer. 4 The species diversity of desert plant communities shows a gradient of change with respect to longitude, latitude and elevation. For example, rangeland plant Sympegma regelii, with a high level of diversity indices (1.706), is in transition to desert plants Haloxylon ammodendronn community (with a low level of diversity indices of 1.379) in a longitude gradient and to saline Tamarix ramosessima community (with a low level of diversity indices of 0.376) in a latitude gradient. Calligonum mongolicum community, with a low level of species diversity (0.819), is in transition to Ephedra przewalskii (with a low level of diversity indices of 0.890) and Haloxylon ammondendron community (with the diversity indices of 0.645) in an elevational gradient.

群落Shannon-Wiener物种多样性水平表现为合头草群落最高(1.706)，具有草原化荒漠植被类型的成分；梭梭群落、膜果麻黄群落居中(0.875~0.890)，荒漠植被类型特征明显；沙拐枣群落、胡杨群落、多枝柽柳群落、胀果甘草群落较低(0.079~0.495)，荒漠林、盐地沙生灌丛及盐化草甸植被均有零星分布。3荒漠植物群落结构层次中，灌木层占居主导地位，群落灌木层物种多样性水平(0.769~1.451)远远大于草本层(0.193~0.254)，且草本层物种多样性受灌木层影响较大。4荒漠植物群落物种多样性分布格局表现为经向、纬向和海拔梯度的变化，经向、纬向变化为物种多样性水平较高的草原化植物合头草群落(1.076)向物种多样性水平较低的荒漠植物梭梭群落(1.379)和盐化植物多枝柽柳群落(0.376)的过渡，海拔梯度则呈现低水平的沙拐枣群落(0.819)到高水平的膜果麻黄群落(0.890)向低水平的梭梭群落(0.645)变化。

Three indices including scale advantage indices, efficiency advantage indices and aggregated advantage indices were applied in this article to measure and analyze the comparative advantages of different prefectures in Gansu Province in eight kinds of major crops,such as wheat, corn, potato, benne, rape, herbal medicine, vegetables and amphisacea.

运用规模优势指数、效率优势指数及综合优势指数3个指标，对甘肃省各地区小麦、玉米、马铃薯、胡麻、油菜、药材、蔬菜和瓜果8类主要农作物的生产比较优势进行了测算和分析。

The results were as follows: 1. Response of physiology indices of Medicago falcata L. to drought stress is different. There are not obvious correlation among indices and ability to drought resistance. The indices include critical water saturation deficiency, free and bound water content, tissue water, peroxidase isozyme, free proline content, chlorophyll a, chlorophyll b, total chlorophyll and chlorophyll. These indices are not fitting for assessing ability of drought resistance of Medicago falcata L..

黄花苜蓿各生理指标对干旱胁迫的响应不同，临界饱和亏、自由水含量、束缚水含量、组织水含量、过氧化物同工酶、游离脯氨酸含量、叶绿素a、叶绿素b、叶绿素总量以及叶绿素与黄花苜蓿抗旱能力之间不存在明显的相关性，不适宜采用这些指标来评价或判别黄花苜蓿材料间抗旱能力的强弱。

Based on grid pattern sampling, by the analysis of lacunarity indices in Huairou and Mentougou District, it is found that: In different scales, the higher lacunarity indices are, the greater heterogeneity of spatial distribution for forest landscape elements is. This performance can be considered as macroheterogeneity characteristics. Oppositely, the lower lacunarity indices values are, the smaller heterogeneity of spatial distribution for forest landscape elements are.

4通过对怀柔和门头沟试验区进行网格局抽样及孔隙度指数分析发现：在不同尺度下，孔隙度指数值越高，森林景观组分空间分布的不均匀程度越高，表现为宏观异质性特征；孔隙度指数值越低，其景观组分在其研究范围内空间分布均匀，表现为微观异质性特征。

To the problem that the isotropy and the technological efficiency of the parallel kinematic machine based on Stewart platform are not satisfactory, a novel architecture of 6-DOF 3-dimensional platform parallel kinematic machine (6-DOF 3-D PPKM) based on the 2-2-2-SPS 3-D PPR is presented. The technological efficiency of design of the parallel kinematic machine is analyzed. Its workspace and the effect of design parameters to the workspace volume are studied. By using the submatrices of Jacobian matrix and force Jacobian matrix, the kinematics/mechanics transmission isotropic indices, kinematics transmission indices, load-bearing capacity indices at any configuration of the parallel kinematic machine are proposed, respectively.

分析其结构和装配工艺性，研究其定位姿工作空间及机床结构参数对工作空间大小的影响，基于Jacobian矩阵和力Jacobian矩阵中同量纲元素构成的子阵，提出该并联机床在任意位姿的运动／力学传递各向同性评价指标、运动学传递能力评价指标和承载能力评价指标；基于柔度矩阵中同量纲元素构成的子阵，提出该并联机床在任意位姿的力-位置柔度评价指标、力-姿态柔度评价指标、力矩-姿态柔度评价指标和力矩-位置柔度评价指标；研究各性能指标在定位姿工作空间内的分布情况。

However, a number of vegetation indices are not linearly related to biochemical components, so these indices may not be appropriate for other vegetative areas. We selected two different scale parameters, leaf chlorophyll content and leaf area index, on the basis of the radiative transfer models PROSPECT and SAIL, respectively, for sensitivity study of a set of indices.

为了寻找合适的波段位置以改善植被指数与叶绿素浓度和叶面积指数的线性关系，去除饱和区域，进而提高这2个参数的实际估算精度，该文选取了叶绿素浓度和叶面积指数，以辐射传输模型PROSPECT和SAIL为基础，模拟了这2个参数变化对3类高光谱植被指数归一化植被指数(NDVI、优化的简单比值指数和优化的叶绿素吸收率指数的影响。

Thirteen undergraduates(7 male and 6 female)participated in manual performance evaluation studying with barehand and with the simulated spacesuit glove through strength,fatigue,tactile perception,range of motion and dexterity 5 studying indices(28 testing indices),and the 28 testing indices were optimized by using statistics and knowledge of anthroposomatology.

航天员在舱外的作业任务种类繁多，又兼有太空失重和超高低温等恶劣因素存在[1，2]，这些都给舱外航天服手套的手动作业工效评价提出了较高的要求。O′Hara等[3~7]结合空间飞行部分情况，在地面上对手动作业工效评价的力量、疲劳、活动范围、触觉感知、灵活性5项工效指标开展了较全

Gleditsia heterophylla ; richness indices ; evenness indices ; species diversity indices ; community type and structure

野皂荚；丰富度指数；均匀度指数；物种多样性指数；群落类型和结构

According to differences among these groups, for est potential fire behavior in Qinling mountains crown fires can be divided into strong crown fire type, weak crown fire type and no crown fire type based on th e maximum crow density of easily burning layers, separated by indices D 0.11 kg/m3 and 0.37kg/m3 respectively; the intensity of surface fire can be d etermined by the μ and W factors and be divided into 3 classes, the str ong surface fire and the medium surface fire, separated by indices W 1.40k g/m2 and indices μ 40%respectively.

据类间 差异性将秦岭森林潜在树冠火行为分为强度树冠火、弱度树冠火和无树冠火3种类型，划分依据为冠层易燃物最大密度，区分指标分别为0.11kg/m3和0.37kg/m3；地表火强度划分应用μ和W双因素判断法，并将其划分为强度地表火、中度地表火和弱度地表火3 种类型，其区分指标分别为地表可燃物载量1.40kg/m2和地表可燃物绝对含水率40%。

The results showed that the species number of periphyton was the greatest in summer and the density of dominant species was the highest in summer and autumn, and the water quality was generally consistent with the tendency of the changes both in the indices of diversity and evenness. There were significant negative correlations between the contents of N and P in water, and the indices of diversity, evenness, algae density, total biomass, while CODcr and BOD5 did not show any significant relationship with these four biological indices.

研究结果显示，着生生物种类数以夏季最多，优势种密度以夏、秋季最大，多样性指数、均匀度指数的变化趋势与水质指标的监测结果基本一致；经相关性分析表明：水体中氮、磷含量分别与生物多样性指数、均匀度指数、藻类密度和总生物量四项指标呈显著负相关， CODcr、BOD5与四项生物指标均无相关性。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。