查询词典 stable distribution

Experimental results show that the multifractal spectrum is an important characteristic parameter, which enables the quantitative analysis and explanation of the homogeneous space distribution and size distribution of Ag particles thickness of films from the multifractal issue.

实验结果表明，多重分形谱是一种有意义的表征参数，能够从多分形角度对薄膜中Ag厚度的空间分布均匀性和尺寸分布进行定量化的分析和解释。

The first part calculates the delivered intensity distribution in-air, and the second part calculates the absolute dose distribution in a homogeneous phantom.

第一部分计算空气中的强度分布，第二部分计算均匀模体中的绝对剂量分布。

The following conclusions have been made in this paper.(1) Based on CO_2 flux data of eddy covariance, variation characteristics of gross primary productivity in four flux observation stations were studied, which are an alpine meadow, an alpine shrub meadow, a swamp alpine meadow and a steppe alpine meadow at Dongxiong. The results show that photosynthetic capacity of the alpine meadow is the highest, and the annual total GPP is 652.2g C/m~2. Daily-differencing approach is used to analyze the random error of CO_2 fluxes measurements. The results show that the distribution of random error follows more closely follows a double-exponential, rather than a normal distribution, capturing the high peak and thick tail, and the random error varies with environment variables, which violates the assumptions for the ordinary least squares fitting with normality and homoscedasticity, consequently, we introduce maximum likelihood method for parameter optimization.

本文主要在以下几个方面开展工作并获得了一些认知和结论：(1)通过分析样带区域内高寒草甸、高寒灌丛、沼泽化湿地和草原化高寒草甸四个通量观测站点草地生态系统总初级生产力变化特征，研究结果表明HBBT矮嵩草草甸生态系统植被光合作用能力较强，年GPP总量为652.2 gC/m~2，明显高于其他三种生态系统；通过利用"单塔日变化法"获得四站点通量观测数据随机误差，结果表明通量观测随机误差概率分布呈现尖峰厚尾的特征，与正态分布相比，更服从双边指数分布，进一步分析表明通量观测随机误差随环境变量(风速、温度和光合有效辐射)的变化而变化，这违背了普通最小二乘法进行生态过程模型参数优化正态分布且误差同质的假设，因此本研究中引入最大似然法进行生态过程模型参数优化。

This not only included a horizontal distribution of powers, but also a vertical distribution of powers.

这不仅包括了横向的权力分配，也包括了纵向的权力分配。

This article dealed with the internal distribution patterns of horsebean field dominant spiders under different weather condition by means of several indexes of aggregation, the result showed that their internal distribution patterns varied with the weather condition .

通过采用聚集度指标的方法，在不同天气下对蚕豆地蜘蛛的内分布型进行了系统研究，测定结果表明其内分布型随天气的变更而变化。

With China's reform, opening up and economic development, China has formed are many professional production on the regional situation, and raw materials distribution market, the focus on displaying products distribution market, the industry layout is very important in these regions all productive resources, technical resources , the market resources, and labor resources in a relatively concentrated form a well-some one hour economic circle, a half-hour economic circle in the economic circle many of the costs are lowest in the country, even the lowest in the world, if business investment with the regional advantages combined, the likelihood of success will be greatly enhanced.

随着我国改革开放和经济发展，现国内已形成就了许多专业生产区域的格局，而原料集散市场、产品的集中展示集散市场，对行业布局非常重要，在这些区域里所有生产资源、技术资源、市场资源、劳动力资源相对集中并配套，形成了一些一小时经济圈，半小时经济圈，在这一经济圈内许多费用都是国内最低的，甚至是世界最低，如果企业投资能与地区优势相结合，成功的可能性也将大大提高。

The anatomical study deepens the knowledge of G-type conducting cells: 1 It proves the theory of two depositional process for secondary wall (Bierhorst, 1960): the discontinuous cellulose layer is laid down before the continuous lignified layer; the former layer is prone to be broken down, while the latter is highly decay-resistant; 2 It suggests that the cellulose primary and secondary walls of tracheids are not perforated. Instead of longitudinal pits (Li, 1992), the lignified tracheid secondary wall of Hsüa possesses irregular simple perforations; 3 In Hsüa reflexa and Huia gracilis, the perforation casts may represent the thickness of lignified secondary wall; 4 The wall structure of G-type tracheid is diversified. At the genus level, the secondary wall structure differs in the distribution, internal shape and structure of the perforations; 5 Perforations of some G-type tracheids combine the characters of S-type tracheids in their distribution, density and diameter.

解剖学的研究加深了对G-型输水管胞的认识 1）验证了管胞次生壁分两个阶段形成的理论（Bierhorst，1960），即先后形成不连续的纤维质层和连续的木质化层，前者易被分解，后者抗侵蚀性强；2）证明管胞纤维质的初生壁和次生壁不具穿孔，Hsüa管胞的木质化次生壁具有不规则的简单穿孔，而不是纵列的纹孔（Li，1992）；3）Hsüa reflexa和Huia gracilis的穿孔铸体可代表木质化次生壁的厚度；4）G-型管胞壁层结构具多样性，植物属一级的分异主要表现在次生壁穿孔的分布、孔腔形状和结构的不同；5）某些G-型管胞的穿孔在其分布、密度和孔径方面可兼有S-型管胞的特征。

I have seen Hunks television distribution, television distribution handsome guy too much.

我见过帅哥配丑女，丑女配帅哥的太多了。

Angular distribution for scatterings of 3He、4He、6He and 7He with hydrogen bromide molecules are calculated by using close-coupling approach from the anisotropic intermolecular potential of the He-HBr system established by the author. The calculations are performed separately at the collision energies of 60 and 100 meV. The influences of He isotope atoms on angular distribution is discussed in detail.

基于作者构造的He-HBr体系的各向异性势，采用密耦方法计算了碰撞能量分别为60和100 meV时3He、4He、6He和7He被HBr分子散射的角分布，详细讨论了氦同位素对散射角分布的影响。

The simulation result of water and salt distribution is verified using data obtained from experiment that is conducted in the greenhouse. The result indicts that good agreement is obtained between simulated and measured water and solute distribution, and simulating precision of Hydrus 2D is good enough for selecting the design and running parameters of drip irrigation system.

结果表明，土壤水分与盐分浓度的模拟值与实测值吻合良好，在模型建立正确，土壤水分与盐分运动参数选取合理的情况下，Hydrus 2D对于水分与盐分运移的模拟精度均可以满足滴灌系统设计与运行参数选取的要求。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。