查询词典 standardized normal distribution

The trigonometric series model based on the grade inputs of standard surface and the road surface random spectral excitations of autoregressive model based on engineering data were calculated under the normal distribution, the uniform distribution and the congruence white noise input.

在正态分布、均匀分布和同余法产生的零均值白噪声的输入下，计算了基于标准路面等级输入的三角级数模型，以及基于实测数据的自回归模型的路面随机谱激励。

By analyzing and determining the annual probability distribution parameters in simplified double wave model for annual dry bulb temperature ,this paper creates the truncated normal distribution model to make the application more precise.

通过对全年干球温度概率分布的双波简化模型中的分布参数的分析和确定，建立了全年干球温度的截尾正态分布模型，使该模型可更为方便准确地应用于暖通空调与建筑节能的设计和分析

Based on the heat balance equation of the vegetation canopy layer and the assumption that its short wavelength absorptance, long wavelength emissivity, heat or moisture transfer coefficient, and bulk stomatal resistance are random, uncorrelated variables with normal distribution densities, the theoretical modeling for IR radiance statistics of vegetation canopy surface is presented by Monte Carlo simulation, with the surface radiative temperature statistical distribution given.

根据植被层能量热平衡方程，选取植被短波吸收率、长波发射率、热与水汽传输系数和气孔阻力为独立的随机变量，并假设它们均服从正态分布，利用Monte－Carlo方法，模拟计算了植被表面红外辐射的统计特性。

The diameter distribution shaped a gentlely left bias normal distribution curve. This article shows law of diameter structure of natural Betula L.

本文利用Weibull分布函数拟合的结果也表明了桦树天然林不同生长发育阶段直径结构的这些规律。

Frequency distribution of 7 phenotypic characteristics in Castanea mollissima primarily displayed a normal distribution.

板栗7个性状频率分布基本符合正态分布，但偏度和削度各自不同，众数的位置及所在组的频率也存在一定差异。

However,the actual series are usually contaminative distribution instead of normal distribution.

目前大坝监测的数据处理一般采用误差服从正态分布的假设。

Chinese stock market presents leptokurtic and fat tails, it does not follow normal distribution but fractal distribution.

中国股市呈现尖峰胖尾特性，不服从正态分布，而服从更一般。。。

Transgressive segregation and approximate normal distribution were observed for all traits. And distribution trends of all traits in population presented resemblance between two years.

在所有考察的性状中，F_2CP及其F_(2：3)群体均呈现近似的正态分布，表现超亲分离，两年的分布趋势非常一致。

Comparing size distribution of trace elements at haze weather and the normal weather discovered that,Ca、Ti、Fe、Cr showed significant enrichment in the small size particle at the haze weather:Cu,As didn't have different at such two kind of weather conditions;Zn、Mn、Pb appeared bimodal even trimodal distribution,whose suggested that there were a long distance transmission in originations of such three metals.

对比正常天气下的金属元素的粒径分布，发现：Ca、Ti、Fe、Cr 等元素在灰霾发生时细粒径上有明显的富集： Cu、As 在两种天气条件下区别不是很大：Zn、Mn、Pb 等元素在两种天气条件下均出现双峰甚至多峰分布。由此推断 Zn、Mn、Pb 的来源中可能存在长距离传输。

The results show that the probability distribution characteristic of the vertical permeability coefficient in fissured rock zone is much close to the log-normal distribution.

结果表明，同正态分布和均匀分布相比，裂隙岩体地区的垂向渗透系数更接近对数正态分布。

I can not negligent, he should do what?

我不能不在意了，他要做什么呢？

It is very dangerous to swim in the river alone.

一个人到河里游泳是很危险的。