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Then the materials were characterized by XRD, FT-IR, SEM, thermogravimetric analysis, and N2 adsorption-desorption experiments. It turned out the sample possessed ordered hexagonal mesoporous channels, high specific surface area of 1207 m2/g, high specific pore volume of 1.03 cm3/g and narrow pore distribution between 2~3nm.

通过 X 射线衍射、傅立叶转换光谱、扫描电镜、热重及低温氮气吸附-脱附试验等测试方法对样品进行了表征，表明该条件所合成的样品具有规整有序的六方介孔孔道，较大的比表面积(1207m2/g)和比孔容(1.03cm3/g)，孔径大小分布窄(2～3nm)，为高质量的 MCM-41 介孔分子筛。

Therefore, to subsample"s observation of continuous random sample parent population, if we can"t get its material function easily, or we dont know its density function, we can use this way to approximate its distribution function. And these methods can achieve good approximation effect.

对连续型随机样本母体中的简单随机子样的观察值，在不易得到其具体分布或不知道其密度函数的情况下，可用此方法来近似求出其分布函数并可达到很好的逼近效果。

We deduce the precise distribution of Pearson χ〓 in small sample case and our calculation is compared with the monte-carlo simulation results.

在统计样本很小时，常用的皮尔逊χ〓量的分布将会偏离χ〓分布，这时如果仍采用χ〓检验将会极大地影响检验结果，我们给出了这种情况下的皮尔逊χ〓量的准确分布并与蒙特卡洛模拟结果作了比较。

The establishment and relaxation processes of the transient gratings, which are formed by two recording 514nm beams with different polarization directions, SS, PP, SP and ±45℃, are investigated. Using the weak absorption of the chromophores at 632. 8nm and the positive dichroism of the chromophores molecules, a kind of bi-photonic transient gratings, owing to the periodic distribution of Trans and Cis isomers, is established first time in azo-dye doped polymeric bulk sample.

实验考察了两束514nm的写入光在不同偏振情况下（SS，PP，SP和±45），在样品中形成的瞬态栅的建立和弛豫情况；利用偶氮生色团在632.8nm波段的微弱吸收和生色团分子的正二向色性，首次在块状偶氮聚合物材料中形成一种基于生色团反式和顺式异构体密度分布的双色光瞬态栅；利用瞬态栅的快速建立和弛豫，考察了其在衍射型全光开关方面的潜在应用。

The paper proposed a pattern plated by photoengraving, and stamped two kinds of UHMWPE surface with different diameter and distribution. The effect of surface texture to tribological performance of UHMWPE was studied by comparasion of sample with turning surface.

本文使用采用用照相制版电铸方法制作模板，压铸成型了两种不同直径和分布规律的UHMWPE试样表面，通过和常规车加工试样表面的对比试验，研究了人造表面织构对UHMWPE摩擦学性能的影响。

In the proposed method,properly spaced background sample pixels are automatically picked up from the image,and then they are used in polynomial fitting for obtaining distribution characteristic of background light.

这种方法假设同类物体具有类似的特征，在灰度图像中是亮度，在彩色图像中则为物体的颜色。

Bayesian method is adopted to determine the posterior distribution by using the prior information, population information and sample information.

结合当前样本信息，利用贝叶斯方法得到捷联惯组历次测试数据的验后分布。

It establishes the prior information, according to historical information or the design experiences and the posterior distribution of the parameters on the basis of sample data, by which we can do point estimation or interval estimation, predict the future trend.

首先，作为可靠性评估的基础性工作，本文提出了贝叶斯预测模型用于配网元件原始参数的评估，引入由历史资料或设计经验形成的先验信息，并结合样本数据形成被估参数的后验分布；在此基础上进行点估计或区间估计，就可以对未来的变化趋势做出预测。

The article reviewed the following points: the distribution in corpse, and how to sample, the influences on the diffusion of alcohol and putrefaction, the discussion about alcohol mass concentration measure methods.

本文对乙醇在体内的分布特点、如何合理取材及死后乙醇扩散、尸体腐败产生的乙醇对乙醇质量浓度分析的影响进行了综述，并对死后乙醇质量浓度检测的分析评价策略进行了讨论。

Considering the fat-tail phenomenon that may exist in practical data, we have also studied the PTLE for the multi-t distribution model based on the three large sample tests above. Performances of the estimators according to the quadratic bias and mean square error are similarly compared in detail.

考虑到实际数据可能存在的厚尾情况，本文研究了文献中讨论颇多的多元t分布模型的基于大样本检验的等式约束预检验Liu估计，并同样在平方偏差和均方误差两个准则下对其优良性进行了详细比较。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。