查询词典 normal atmosphere

It assumed that the initiating life of single crack follows logarithmic normal distribution or normal distribution according to existing research and experimental results.

该方法简化了飞机结构发生MSD可能性的计算，为飞机结构的安全性评估提供基础。

This paper discusses the equivalent normal distribution of logarithmic normal distribution and weibull distribution.

本文着重研讨了对数正态分布和威布尔分布的等效正态分布。

It has been found that the depth of crack and fracture toughness of material can be expressed by weibull distribution, ratio of depth to length of crack and strength of material can be expressed by logarithmic normal distribution and normal distribution respectively.

对该管道主要随机变量的统计分析表明，裂纹深度和材料的断裂韧性表现为威布尔分布，裂纹深长比表现为对数正态分布，材料的屈服强度和拉伸强度表现为正态分布。

When the data is not in normal or logarithmic normal distribution, the least-squared method is not applicable to obtaining the sensitive index.

受最小二乘法求优数学解的约束，在求解作物水分响应模型的敏感指标时常出现从作物生理和物理上难以科学解释的情况，这除与试验处理数量多少及缺水水平有关外，也与试验数据的统计分布有关。

Based on the approach of turning some of the relevant extreme-value-type and logarithmic normal distribution variables into independent and normal random variables, the shear-slipping failure probability of a high arch dam is worked out to be of the order of magnitude of 10^(-5) by means of second-order moment method.

在将部分相关的极值型与对数正态分布随机变量转换为独立、正态随机变量的基础上，利用二阶矩法计算得到某高拱坝的剪滑失效概率为10^(-5)量级。

When the variance was known and the conjugate prior distribution was normal,a Bayes estimation of loss-function and risk function of logarithmic normal distribution was given.

方差已知时，给出共轭先验分布为正态分布下，对数正态分布的损失函数和风险函数的Bayes估计，得到其Bayes估计为保守估计的条件

When the flow of the river and the capability of the river diversion follow normal distribution or logarithmic Normal distribution or Pearson—Ⅲ distribution, the point estimation and the one order or two order approximately interval estimation of the risk probability of the criteria of river diversion are given.

并根据河道来流量和导流系统设计泄流能力分别服从正态分布、对数正态分布以及皮尔逊—Ⅲ型分布的分布形式，给出了施工导流标准风险率的点估计和一阶、二阶近似区间估计的计算公式。

Finally, the physical index and compression index of silty soil from Yangtze Basf project are divided to three groups according to depth, then characteristic statistic are calculated to physical and compression index of three groups and mechanical index of all depths. After that, normal distribution 、 logarithmic normal distribution and extreme I distribution are fitted for physical and mechanical indexes. And Goodness-of-fit testing with X~2 method is done subsequently.

最后，将扬子巴斯夫工程粉质粘土的物理指标和压缩性指标按照埋深分为三组，计算了不同深度上粉质粘土的物理指标和压缩性指标以及所有深度上抗剪强度指标的特征统计量；然后用正态分布、对数正态分布和极值I型分布对各指标进行概率模型拟合并用x~2法对拟合优度进行了检验。

The main purpose of the thesis is choosing the more superior distribution among normal distribution, logarithmic normal distribution, weibull distribution, beta distribution and gamma distribution when they are used for fitting and forecasting ten main trees diameter distribution of natural secondary forest in baotianman on basis of analyzing and comparing the data from the 32 plots of natural secondary forest in baotianman.

以宝天曼天然次生林32块样地的调查数据为依据，分别以正态分布、对数正态分布，Weibull分布，Beta分布，Gamma分布拟合及预测宝天曼自然保护区天然次生林10种主要乔木树种直径分布，并对其适用性进行分析、比较，选出最适合于拟合及预测该林分直径结构的分布。

In view of the existing situation that forest tree heritabilities is estimated too extensively, the paper elaborated the effect of non normal distributions (citing the normal logarithmic distribution and Γ distribution as instances) on estimating heritabilities with simulated data.

针对林木遗传力估算过于粗放的情况，该文以对数正态分布和Γ-分布为例，应用模拟数据阐述了非正态分布对林木遗传力估算的影响。

Smoking cigarettes adds to the Computer Desk Computer manufacturer computer mouse Computer Computerized collar knitter machine Conduit Bodies construction board Container Bag Control Arm Cooking Thermometer general levels of air pollution as well as damaging our health.

吸烟不仅对健康有害，而且增加空气污染程度。香烟雾含有多种有害物质：不仅有致癌化学物质、有某种能阻止氧气进入血液的气体，还有引起血压增高、心速加快的被称为尼古丁的物质。

He is one of my favorite actors.

他是我最喜欢的男演员之一。