本文讨论了存在不回答样本单位时,有限总体均值的缺损样本估计。
This paper deals with the incomplete sample estimation of finite population mean in existing of nonrespondent sampling units.
本文主要是研究几类统计模型的参数估计和有限总体中未来观察值的预测等统计推断问题。
The thesis is concerned with statistical inferences including parameter estimation and prediction of future observations in finite populations under several statistical models.
对有限总体在不放回抽样的方法下,构造了一类非线性回归估计量,讨论了它的性质及其有关抽样误差.。
A kind of nonlinear regression estimator for limited Population is given and the quality and the sampling variance about is discussed.
有限的总体情景。
但是就算“Natal工程”是一奇迹,其对微软总体的收益影响也有限,微软主要的收益还是来自于Windows和办公软件的特许经销权上。
But even if the Project Natal device is a blockbuster, it will do little to impact Microsoft's overall revenue, which remains highly dependent on the Windows and Office franchises.
“总体来说,因为许多物种都没有追踪调查过,所以我们对不同物种本性的了解有限。”他说。
"Generally we know rather little about the performances of different species, as many have not yet been tracked," he said.
人均可支配收入虽然有限,但总体消费能力是巨大的。
Per capita disposable income will be constrained but aggregate spending power will be massive.
仅仅依靠有限的几个负面因素,就想总结出食品的总体营养价值,这简直就是愚蠢到家了。
Trying to sum up overall nutritional quality by looking only at a short list of negative considerations is silly to the point of … ugly.
捕获再捕获与捕获移出研究是数理统计的一个重要方向,它研究如何利用随机样本估计有限群体的总体数目。
The field of capture-recapture and removal is an important direction of mathematical statistics, which studies the estimation of the sizes of finite populations from incomplete random samples.
有限元计算表明,网格墙在轴力和水平力作用下的正应力分布与实体墙总体上一致;
The finite element analysis showed that the normal stress distribution of the grillage wall was about the same as that of the solid wall.
因此,第一个实验证明在服用阿司匹林组的心血管终点事件显著减少,但总体获益有限。
Therefore the first trial demonstrated a significant reduction in cardiovascular end points with aspirin use, but limited overall benefit.
但总体而言,与发行股票和长期次级债券相比,资产证券化对提高资本充足状况的作用有限。
But on the whole, compared with stock or long - term secondary bond, the effect of asset securitization on capital adequacy rate is really limited.
不知道有多少是转入销售-这是一个昂贵的手机,强大的市场有限-但总体的反应是非常积极的。
Not sure how much of that transferred into sales - it is a mighty expensive handset with limited market - but overall reaction was very positive.
总体说来,“潜在意义巨大的草-药相互作用信息很有限,”综述中说到,“医疗健康专业人员应该常规的询问她们是否服用类似产品。”
Overall, "information on potentially significant herb-drug interactions is limited, " the review concludes. "Healthcare professionals should ask women routinely if they are taking any such products. "
因为其新,也恰恰是企业本身不熟悉,总体业务规律不清晰,甚至在企业资源投入上是有限或者试探性的。
Because of its new, it is not familiar with the business itself, the whole business of not clear, even in the enterprise resource input is limited or exploratory in nature.
该一维有限元列式只需对扇形区域在角度方向上离散,最后的总体方程为一个二次特征根方程。
Discretization in angular coordinate is needed only and the global equation is a second order characteristic matrix equation.
根据全要素能源效率框架,建立DEA模型,对2005-2010年中国省际建筑业能源效率进行研究,研究表明:这一时期,建筑业能源综合利用效率总体上有所提高,但是技术创新对于能源效率提高的作用还比较有限;
According to the framework of total factor energy efficiency, a DEA model is built to study China's inter-provincial energy efficiency of construction industry during 2005-2010.
为确定一种离合器飞轮新产品在大离心力作用下的总体强度储备,对飞轮在离心力场及配合应力作用下的应力分布作有限元分析,并进行了超速破坏试验。
A new type of clutch flywheel needs to determine the limited strength under high centrifugal stress. Finite element analysis and burst spin tests of the flywheels has been done.
在本科,虽然付出了一些精力,我自己认为我现在的环境,总体感到学到的东西有限,增长的见识有限。
At the undergraduate, while paying some attention, I think my current environment, the overall feel of things to learn is limited, growth had limited knowledge.
总体上,基于紊流混合长理论的模型,形式简单,但适用范围有限。
Generally speaking, the models based on the turbulence mixing theory are formally simple, but have a limited application area.
本文用有限维逼近无限维的方法来讨论函数空间中的总体最优化问题。
New optimality conditions of the integral global minimization are applied to characterize global minimum in functional space as a sequence of approximating solutions in finite-dimensional Spaces.
通过这些计算,为火箭发动机强度的有限元法提供参考,为固体火箭发动机的总体设计提供改进结构设计的依据。
This paper provides a new methods of analyzing strength of solid rocket engine. And many value materials are given so that the designers of solid rocket can improve their structure design.
总体上来说,研究证实,北京奥运会的经济影响在微观层面是有限的,这一结论适用于经济总量较大情况下重大节事的经济影响评价,对于重大节事的管理与参与有一定的借鉴意义。
This conclusion also fits to the economic assessment of mega-events in the case of a larger economic scale and is of certain referential significance to managers and participants of mega-events.
总体上来说,研究证实,北京奥运会的经济影响在微观层面是有限的,这一结论适用于经济总量较大情况下重大节事的经济影响评价,对于重大节事的管理与参与有一定的借鉴意义。
This conclusion also fits to the economic assessment of mega-events in the case of a larger economic scale and is of certain referential significance to managers and participants of mega-events.
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