| 1. | to define a particular normal probability distribution, we need only two parameters: the mean(μ)and the standard deviation(θ). 确定一个具体的正态概率分布,只需要两个参数:平均数和标准差 |
| 2. | Lower confidence limit of normal probability within specified limits 定限内正态概率的置信下限 |
| 3. | Normal probability curve 正态概率曲线 |
| 4. | < uk > to define a particular normal probability distribution , we need only two parameters : the mean ( ) and the standard deviation ( ) . < / uk > < uk >确定一个具体的正态概率分布,只需要两个参数:平均数和标准差< uk > |
| 5. | Representation of results of particle size analysis - methods of calculation relating to particle size analyses using logarithmic normal probability distribution 粒度分析结果的表示.使用对数正态概率分布的粒度分析相关计算方法 |
| 6. | The waste load is regarded as a stochastic variable following the log - normal probability distribution based on statistical data , and the constrains on water quality levels are expressed in a probability form 假设排污量是服从对数正态分布的随机变量,并且以潮周期内水质达标的概率作为衡量控制点达标的依据。 |
| 7. | In the paper , based on the analysis of data from radiation stations and the data of corresponding sunshine stations , the normal probability distribution feature of monthly solar radiation is figured 本文采用我国70个建站时间在30年以上的日射站资料以及对应的日照资料,首先讨论了单站总辐射与日照相关系数的时空变化特征。 |
| 8. | The comparison and application show that the normal probability model can be applied to forecasting the performance of water cut when the oilfield enters into medium water cut stage for either s - type , convex - type or concave - type curves 油田开发实践表明,当油田进入中含水期后,不论是s型、凸型,还是凹型水驱特征曲线都可以应用正态概率模型进行预测。 |
| 9. | Using normal probability model is more simple and efficient to determine performance and characteristic parameter of waterflood oilfield , so it is feasible and practicable to forecast water cut and oil recovery of waterfood oilfield and evaluate its development measures 摘要应用正态概率模型可以方便地确定水驱动态变化、描述水驱特征参数,这就使得预测油田含水率、采收率、评价并发措施变得比较简便而实用。 |
| 10. | Then the unified approach can be applied to it to acquire the ensemble random evolutionary response . since the normal probability density function ( pdf ) may lead to instability of some sample systems when the random parameters taking sufficiently small negative values , an arch - like pdf and a more adaptable - pdf , together with the matching chebyshev polynomial approximation and gegenbauer polynomial approximation , are suggested . numerical examples show that the suggested methods are effective 相比较而言,随机模拟法的结果无疑是最可靠的,但是它的计算量嫌大;随机摄动法的计算量远小于随机模拟法,但是它要求随机摄动量必须是一个小量;正交展开法的计算精度好于随机摄动法,其得到结果与随机模拟法得到的结果几乎吻合,其计算量略多于随机摄动法,但与随机模拟法相比要少的多,不过计算前的准备工作较费时。 |