难点

The difficulty in statistical inference using Bayesian approach is calculating the posterior margin distribution, in most situations, it is very difficult to do so and even the formula can not be got.

运用Bayes 统计分析的方法进行统计推断的难点在于其后验边际分布的计算，在很多情况下很难，甚至不可能得到后验边际分布的解析表示，有时虽然可能得到解析表示但是结果相当复杂，不便于应用和推广。

In view of uniqueness of heavy oil and high pourpoint oil reservoir,various technical methods were fully used,and some leading techniques for development of heavy oil and high pourpoint oil in Liaohe oil region were developed.

论述了稠油和高凝油勘探开发历程，对辽河油区稠油、高凝油多年勘探开发进行了系统总结，并对存在的难点进行了分析，为辽河坳陷及类似地区稠油和高凝油的勘探开发提供了一定的参考价值。

To minimize the estimated error, over-sampling or pre-conditioning filtering is commonly used.

对于传统的离散子波变换方法，初始分解系数与离散采样值不匹配是一个难点。

Another problem is automatically seeking the route . Former model is complexity, so we put forward the method of predigestion, and set up a model of dendriform network.

自动路由的查找是本工程中的一个难点，在考虑到原来的模型比较复杂的情况下，根据实际情况，提出了简化模型的方法，建立了一个树型的设备模型，在此基础上，在程序中实现了自动路由的查找。

Summarize and analyze on the preprocessor of the finite element method firstly was carried through in this paper.

本文首先对有限元前处理技术进行了分析和综合，指出了六面体网格在有限元分析中的优点及六面体网格剖分的难点和现状。

So, the military college graduates' management is one of the hotspots and difficulties in the present military management.

因而军校研究生管理是目前军队管理中的热点和难点问题之一。

Asks the law about the function most value, is in the high school mathematics teaching difficulty and key, is one which of contents all previous years college entrance examination inspects.

关于函数的最值的求法，是高中数学教学中的难点和重点，更是历年高考考察的内容之一。

The difficulties during developing this technique is that dielectric loss tangent measured is very small, and many factors influence the high-precision measuring, such as the excursion of the primary wave on power line, the existence of the harmonious wave, and the electromagnetic interference in the field and so on.

该检测技术的难点在于待测介质损耗角很小，电网基波频率不稳、高次谐波的存在以及现场电磁干扰等因素都会影响测量准确度的提高。

The prime character of Bayes method requires the prior probability as well as s ample information during dealing any statistical questions.

进行机电设备故障诊断的难点在于故障和征兆信息的随机性、模糊性和某些信息的不确定性。

Karl presented a problem because he was unable or unwilling to do homework assignments, yet the crux of the problem was his avoidance of social contact.

卡尔提出一个问题，因为他不能或者不愿意做作业，然而问题的难点是他对社会接触的避免。

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。