查询词典 difficult problem

Concatenated code is one of the most prospective method to solve this difficult problem.

级连码是目前知道的最有希望达到这一目标的手段之一，而研究其快速有效的译码方法是使其走向实用的最重要的课题。

Thus, Estimation for residual life of cranes becomes difficult problem in engineering.

因此，起重机的剩余寿命评估成为工程上的难题。

The purpose of Eco-compensation is to protect eco-environment as well as maintain the peasants' interest. Eco-compensation has been a major focus in many important policy documents such as the outline of the 11th Five-year Program, the No1 document of the central government of 2006, the Report to the 17th National Congress of the Communist Party of China. Eco-compensation has raised widespread attention from all social fields, and it is a hot spot and difficult problem which is desiderated to be deeply studied for the theorists. The study has important theoretical and practical significance.

生态补偿也是我国&十一五&规划纲要、2006年中央一号文件、党的十七大报告等重要政策文件中提到的保护生态环境和维护农民利益的重大举措，已引起社会各界的广泛关注，是理论界亟待深入研究的热点和难点问题，其研究具有重要的理论意义和现实意义。

However, its moral function——emotion-attitude-value's education is still a difficult problem which desiderates to be solved as soon as possible.

但是，小学科学的育人功效——情感态度价值观的教育还是一个亟待解决的难题。

Extorting confessions by torture,as a difficult problem in the research of procedure theory,is a phenomenon still existing in modem criminal procedure.

刑讯逼供是仍然存在于现代刑事诉讼中的一种屡禁不止的丑恶现象，也是诉讼理论研究上的一大难题。

The automatic identification of seal imprints is a very difficult problem of pattern recognition.

印鉴自动识别是模式识别中的一项非常困难的课题。

How to carry out HRM strategy to improve corporations internationalized development is a difficult problem.

如何在复杂的国际化环境下，进行企业的人力资源管理，促进企业国际化进程的发展，是中国企业面临的难题。

Raising rural social insurance funds is the most difficult problem of establing rural social insurance system.

建立农村社会保险制度的最大难题在于社会保险基金的筹集。

At present, diesel oil plays a more and more important role in the various kinds of fuel. But compare to gasoline, diesel oil has a high rate of sulfur compound. The sulfur compound is existed mainly as thiphene and thiphene ramification. These kinds of sulfur compounds are not easy to remove by adding hydrogenation. Thats why diesel oil has a high rate of sulfur compound. So it makes profound desulfurization a hot topic and a difficult problem in and outside the country. This paper takes dibenzonthiophene as a model to study the profound desulfurization of diesel oil with the help of biology and the oxygenating desulfurization under the condition of ultrasonic and microwave.

目前，柴油在燃料油中占的比重越来越大，而柴油较汽油馏分重，其硫化物主要以噻吩及噻吩衍生物的形式存在，这类硫化物用加氢的方法难以脱除，使柴油的含硫量较高，因此柴油的深度脱硫是国内外研究的热点和难点，本文以二苯并噻吩作为模型化合物，考察微生物的协同条件下对柴油的深度脱硫，超声波条件和微波条件下的氧化脱硫，并对超声波条件和微波条件下柴油的深度脱硫进行了对比。

Persisted develops from the Hebei Chang An needs actual to embark with the Dingzhou economy development, drafts legally, the standard operation, explains drafts the difficult problem, according to "along with uses along with to draft, rolls the development" the principle under, reserves for the Hebei Chang An automobile development many uses the space in 10 years, guarantees long pacifies and unites the automobile industry to have the project to have the land.

坚持从河北长安发展需要和定州经济发展实际出发，依法征地，规范运作，破解征地难题，按照&随用随征，滚动发展&的原则，为河北长安汽车发展预留下不少于10年的用地空间，确保长安集汽车产业有项目就有土地。

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。