查询词典 difficult problem

A more difficult problem is the quantitative description of the secondary breakup of the initial spray by high velocity combustion gas.

一个更困难的问题是关于高速燃气使初始喷雾二次破裂的定量描述。

Vocational teachers training is very important and difficult problem in inland provinces of China.

专业课教师队伍建设，是内地职业教育发展的重点和难点问题。

Based on scale SVD transform, a target feature extracting method is proposed to solve this difficult problem. The experimental result shows that this method has favorable stability to target matrix's SVD feature vectors, and high invariant property to displacement, rotation and scale.

为解决这一技术难题，文中提出了基于尺度奇异值变换的红外图像目标特征提取方法，实验表明该方法提取的目标矩阵的奇异值特征向量具有较好的稳定性，对图像的平移、旋转和比例变化具有良好的不变性，是一种实用的特征提取方法。

Sharp boundary inversion is a relatively difficult problem in magnetotelluric and other geophysical inversion, which has been studied by many researchers.

尖锐边界反演是大地电磁及其他地球物理反演中的一个较难解决的问题，目前有不少专家正对这方面进行研究。

Geophysical inversion is a very difficult problem due to its non_linear nature.

由于非线性特性地球物理反演一直以来都是一个比较困难的问题。

To solve this technology difficult problem, the course such as center of technology of plum steel company, ironworks experiment of more th......

为解决这个技术难题，梅钢公司技术中心、炼铁厂等经过。。。。。。关键词：热风炉基底技术难题热风炉，基底，材料

In order to solve in the distribution, isomerism and the dynamic Internet environment the digital library resource sharing, the semantic retrieval and the knowledge discovery difficult problem, designed the platform based on the grid Digital library knowledge, and the realization of the key technologies were discussed.

为解决广域、分布、异构和动态的Internet环境中数字图书馆资源共享、语义检索和知识发现的难题，设计了基于网格的数字图书馆知识服务平台，并对其实现的关键技术进行了讨论。

How to determine the isomorphism of graphs is a difficult problem of graph theory,which is not completely solved so far.S.M.

图同构的判定性问题是图论理论中的一个难问题，至今没有得到彻底解决。

The auto-control of air-valve is a difficult problem in the jigger control project, the capability of the auto-control of air-valve affects the delamination of the coal bed directly. So, it is important to study the control of the air-valve.

风阀自动控制一直是跳汰机控制的难点，而风阀控制性能的好坏直接影响着床层的分层效果，因此，对风阀控制的研究尤为重要。

Jointer of offense is a difficult problem in theory and practice of criminology, and imaginative jointer of offenses causes more disputes for its unique structure.

犯罪竞合论是刑法学理论与实务上的一个难题，而想象竞合犯因其自身的独特结构所引起的争议更大。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。