在困难中

Data from the database of decision domain is often uncertain and incomplete, and resulting in difficulty of knowledge discovery from this kind of data.

在决策领域，人们所面对的数据往往具有不确定性和不完整性，从这类数据中发现知识是一个非常困难的问题。

Data from the database of decision domain are often uncertain and incomplete, and resulting in difficulty of knowledge discovery from this kind of data.

在决策领域，人们所面对的数据往往具有不确定性和不完整性，从这类数据中发现知识是一个非常困难的问题。

When I look back, I always feel so proud and honor. The restoring of Yuan Ming Yuan has long way to go. The demolishment was done in 1860 by Anglo-French allied force. This destruction make lots of antique and information missed over world. We are lack of draw, information, technology.

圆明园复兴的千秋大业任重而道远。1860年英法联军带给它毁灭性的灾难，至今仍有大量的文物资料遗失国外，缺乏资料和图纸，缺乏资金和技术，在保护整修的过程中，遇到的困难是可想而知的。

Detail of a Civil War drawing by Alfred R. Waud published in Harper's Weekly in October 1863

在我们的系列节目中，本周我们向你讲述美国宪法是如何让美国度过那极为困难的历史时期的。

Dr. Coopersmith estimated that about half of minor head injuries seen in U.S. emergency departments are also alcohol related, which also makes clinical assessment difficult and increases the appeal using a simple blood test to aid diagnostic decision-making.

Coopersmith医师估计，在美国的急诊室中，大约一半的头部外伤是与酒精有关的，使得评估更为困难，而使用一种简易的试验将可以帮助诊断。

The traditional Expert System of fault diagnostician is a aptitude diagnose model based on sign reasoning and is a computer programs to solve the problems in the field at the expert level.

传统的故障诊断专家系统(Expert System，简称ES)是基于符号推理的智能诊断模型，是在故障诊断领域内以人类专家水平去解决该领域中困难问题的计算机程序。

Dickens was one of the world's most famous and productive writers.

在所有这些任务中，这一项是最困难的。

At last, we are concerned with the global existence and asymptotic behavior of smooth solution to the initial boundary value problem for the bipolar hydrodynamic model with the Neumann and Dirichlet boundary condition in the one-dimensional case, respectively. The difficulties from the coupled action between electrons and holes are carefully dealt with.

另外，本文也深入研究一维空间双极半导体流体动力学模型初边值问题光滑解的整体存在性及其衰减性，分别讨论了两类在实际应用中重要的边值条件，克服了由于电子和空穴之间的耦合作用所带来的困难。

In order to bypass the difficulty of discretizing the boundary r or the Lebesgue discontinuous set Su in the Mumford-Shah model, we use an edge-detector function and a threshold value to induce a thin-belt where the image boundary lie in and displace the length of the boundary by the area of the thin-belt approximatively.

为避免在离散化Mumford-Shah模型中的边界Γ或Lebesgue不连续集S_u的困难，我们借助边界检测算子和门限值，确定图像边界所在的窄带区域，用窄带区域面积近似边界的长度。

In reliability-based optimization problems of a ship's longitudinal structural design, there are lots of discrete variables and continuous variables. This kind of mixed-discrete non-linear optimization problem containing discrete and continuous variables has long been payed attention to, which is more difficult to solve when a number of reliability constraints are taken into account.

在船舶纵向结构的可靠性优化设计中，含有许多离散型设计变量和连续型设计变量，这种含有两种不同性质设计变量的大型结构物的混和优化问题，一直是人们瞩目的难题，尤其是考虑了多个可靠性约束条件之后，求解这种非线性优化问题就更为困难。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷