查询词典 difficult problem

The study of low energy hadron physics in QCD is a long standing difficult problem due to its nonperturbative nature.

由于非微扰效应起主要作用，QCD低能强子物理的理论研究一直是一个难题。

Chinese handwriting characters recognition is the most difficult problem in character recognition field.

摘 要：手写体汉字识别是汉字识别领域中最难的课题。

Real estate developers who had thought that at least "complain" about the land difficult to get hard money loan, but the fact is, almost all the guests to speak from the positive Thinking in terms of the problem.

房地产开发商谁曾想到，至少有"抱怨"关于土地很难得到硬钱贷款，但事实是，几乎所有的客人讲的积极的角度思考这个问题。

Encouraging is, this world difficult problem smoothly has-been recently solved by our country public security scientific researcher.

鼓励顺利地是，这位世界困难的问题has-been 由我们的国家公共安全科学研究员最近解决。

To do feel like sth. have a hard/difficult time doing sth have problem doing sth have fun doing sth need to do sth.

费了很大劲做某事做某事有困难乐于做某事需要做某事主语是人，强调需要被…(主语是物，强调被 10。

Chapter 4 puts up the basic theory of non-linear finite element calculation methods and deduces calculation iterative formula and relevant accelerating iterative format. In the calculation of non-linear finite element, yielding element calculation is a difficult problem,"fictitious elastic stress" methods propounded in this paper puts the axe in the helve.

第四章提出了非线性随机有限元法的基本理论，并推导了计算迭代公式，为加快计算速度，提出了相应的加速迭代格式，对于基于非线性随机有限元的可靠度计算中，屈服单元的计算方法是一个难题，本文提出了"虚拟弹性应力"法，较好的解决这个难点。

But, the difficult problem that Zhang Baoquan faces is far still more than hereat.

但是，张宝全面临的难题还远不止于此。

But that how to construct a DPEA, which could satisfy the requirement of developers in different domains or different phases as well as new development method in the future, is a very difficult problem at all times. Hereinto software architecture of DEPAis a key factor.

如何构造嵌入式软件开发平台，既满足不同开发阶段及不同领域开发者的需求，又兼顾未来新的开发方法的需要，则一直是个难题，其中开发平台的软件体系结构是一个关键因素。

However,it is a difficult problem due to heterogeneous data structure and semantics of these data sources.

但是，不同数据源之间数据结构和语义的异构性导致数据集成是相当困难的。

It is difficult to deploy QoS routing in hierarchical network because QoSR is NP complete problem and lack of scalability.

然而由于QoSR是NP完全问题，其可扩展性和在层次化网络中如何实施等问题都难以解决。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。