查询词典 difficult problem

How to control flood is a difficult problem and no best way is available now all over the world.

如何对付水灾，可以说是一个世界性的难题，人类至今仍然没有找到一个应付自如的方法，它依然是困扰大多数国家的一个重大问题。

Fluidization of nano-powders is a world-wide difficult problem in the field of fluidization research.

纳米粉体流态化是流态化研究领域的世界性难题。

A difficult problem in this area is how to guard against fraud.

在这区域的一个困难的问题是该如何防止欺骗。

Matrix Converter has no free-wheeling path, which makes its fault protection a difficult problem.

矩阵式变换器没有自由续流回路，这使得其安全保护成为一个难点。

Computing complex argument Fresnel integral is a difficult problem meeting in electromagnetic scattering of lossy dielectric wedges.

摘要复宗量菲涅耳积分的计算，是有耗介质劈电磁散射中遇到的一个难题。

Chapter 4 The Computation of Complex Argument Fresnel Integral and Complex Ar gument Transition Function and Their Properties The computation of complex argument Fresnel integral and complex argument transition function is a difficult problem meeted in electromagnetic scattering of lossy dielectric wedges.

第四章 复宗量Fresnel积分和复宗量过渡函数的计算及其性质复宗量菲涅耳积分的计算和复宗量过渡函数的计算是有耗介质劈电磁散射中遇到的一个难题，目前无表可查，对其性质也知之不详。

Using the function limit theory established in this thesis, we solve this difficult problem.

我们运用本文中建立的函数极限理论，解决了这一困难问题。

It was pointed out that even if for〓,the existence of〓solutions ofthe linear iterative functional equation〓is a difficult and veryinteresting problem.

有关文献指出，当〓时，即使是线性型的迭代函数方程〓的〓解的存在性也是一个困难而很有意思的问题。

The definition of state functionary is a difficult problem that has disturbed the criminal academic and judicial fields for a long time.

刑法中的国家工作人员的界定是长期困扰刑法理论界和司法部门的一个难题。

This technique makes it possible to reproduce a three-dimensional stereo by getting fundamental matrix through matching pixels. But it is the most difficult problem to be solved completely.

本文对立体匹配的相关理论与算法进行了细致的研究，采用小波变换提取图像突变特征点的方法，并与传统采用的角点方法在性能上作了一些比较。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样