确定管道流变应力的不确定性分布是对含缺陷压力管道进行可靠性评定的前提。
For assessing reliability of a pressure piping containing defects, it is necessary to know the calculation method and the distributions of flow stress of material.
在分析R&D项目技术和市场不确定性分布特征的基础上，提出多步骤四项式期权定价模型，用于R&D项目进展评估。
Besed on the analysis of technology and market uncertainty of R&D project, a multi-step quadranomial option pricing model is presented for valuing an ongoing R&D project.
当概率分布未知时，就存在不确定性。
Uncertainty occurs when the probability distribution is unknown.
可能性、不确定性和结果分布。
We have probabilities, uncertainty and distributions of outcomes.
催化裂化装置是一个高度非线性、时变、长时延、强耦合、分布参数和不确定性的复杂系统。
FCCU (fluid catalysis and cracking unit) is a highly non-linear, time variable, long time delay, intensive coupling, parameter distributed, indefinite and complex system.
针对换热器的失效分析，考虑几种主要参数的不确定性和随机性，应用蒙特卡罗模拟法抽样计算了服从某种特定分布的随机变量。
Through failure analysis of heat exchangers and in consideration of uncertainty and randomness of several main parameters, the random variables are calculated by Mote-Carlo modeling.
以贝叶斯理论为依据，考虑元件可靠性评估不确定性的影响，建立分布式监测系统的系统可靠性评估方法。
An estimation method of system reliability based on Bayesian statistical theory is presented in consideration of the uncertainty of component reliability estimates for distributed monitoring systems.
神经元网络启发式的并行、分布特征和可学习性为专家系统的知识表达和获取、不确定性推理提供了新的途径。
The parallelism, distribution and capability of learning of neural net heuristics provide a new way for knowledge acquisition, knowledge representation and uncertainty reasoning in expert systems.
指定设计重现期或频率的水文设计值为随机变数，有一定的分布规律，表明它有相应的不确定性。
The hydrologic design values of specific design return period or frequency are random variables having certain distribution pattern, so there are some uncertainty in it.
未来时间机组可用率和预测负荷不确定性等因素导致电价是一个随机变量，因此，从概率角度考察电力市场中的电价分布规律是合理、必要的。
It is reasonable and necessary to acquire the rational price distribution pattern, because the price is a random variable due to the uncertainty of load forecast in the future.
针对网络化控制系统(ncs)具有不确定性的传输迟延与数据丢包特性，设计了一个分布式的网络化控制系统模型。
With regards to the characteristics of uncertain transmission delay and packet dropout of networked control system (NCS), a distributed model is proposed in this paper.
基于熵不确定性概念的机器人位姿精度评价指标的大小同机器人各参数误差的大小及其概率分布有密切的关系。
Robot pose accuracy evaluation indexes based on entropy uncertainty concept have a close relationship with the magnitude and distribution of robot parameter errors.
针对分布式发电系统负载的不确定性，为提高系统的适应性，文中在逆变环节采用四桥臂逆变器。
Three-phase four-leg inverter is used in the inverter link to improve the adaptability of the system because loads in distributed generator are uncertain.
GIS位置数据的不确定性研究如果能顾及误差的实际分布模式，可以得到更好的成果。
Better achievements can be expected if the actual distribution mode of errors is taken into consideration in the research of uncertainty in GIS position data.
基于股票价值的不确定性，我们可以建立股票价值的分布曲线。
Based on the uncertainty of stock value, the stock value spread curve can be drew up.
计算备件需求量的传统模型是概率模型，然而概率模型中的分布参数往往有一定程度的不确定性。
The conventional model for calculating the demand of the spares is the probability model; however, the distribution parameters in the probability model usually contain uncertainties to some extent.
战役全域空间内战场损伤的产生及分布是典型的非确定性难题。
The production and distribution of battlefield injury in campaign macrocosm is a typical non-deterministic problem.
根据1500年以来的地震活动，用确定性方法对华北地区地震地面危害分布图进行了定量计算。
From the strong earthquake activities since 1500, the seismic ground hazard map in North China is assessed using a deterministic approach method.
本文着重对节水灌溉稻田土壤大孔隙分布不确定性研究，为大孔隙流研究工作进一步开展奠定了基础。
This paper emphatically studied uncertainty distribution of macropore in paddy soil, laid the foundation of further research on macropore flow.
针对水资源丰富程度评价中的不确定性及水资源分布特点，将集对分析中的五元联系数法应用于水资源丰富程度评价。
In view of the uncertainty of evaluation indicators for water resources richness assessment and water distribution characteristics, five-element connection number is adopted.
结果表明，焊接接头的应力不均匀性和不确定性是影响钢制压力容器安全性的关键，采用加载法可以有效地改善这种非均匀应力分布状况。
The test shows that the non-equality and unknown stress distribution of weld joint, which can be promoted by extra-load, is the key to make sure the steel pressure vessel for safety.
以GIS中线元不确定性为例，讨论了线元不确定性的统计熵、模糊熵和混合熵估计方法，并针对特例给出了线元不确定性的熵带分布。
Taking the uncertainty of line segment as an example, this paper discusses the evaluating methods of statistic entropy, fuzziness entropy, and hybrid entropy...
结合粗糙集理论和遥感数据中地物光谱特征空间分布信息，提出了一种基于光谱特征邻域的容差粗糙集分类方法，用来处理卫星遥感数据分类中的不确定性问题。
Based on the spectral feature neighborhood, this paper proposes a tolerant rough set classification method to handle the uncertainty in the process of satellite remote sensing data classification.
结合粗糙集理论和遥感数据中地物光谱特征空间分布信息，提出了一种基于光谱特征邻域的容差粗糙集分类方法，用来处理卫星遥感数据分类中的不确定性问题。
Based on the spectral feature neighborhood, this paper proposes a tolerant rough set classification method to handle the uncertainty in the process of satellite remote sensing data classification.
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