From studying some kind of quite complex variational equation problems and applying the conclusion, we prove that the optimal control of new model is existent and characterize its structure.
通过对一类相当复杂的变分方程问题的研究并利用其有关结论，我们证明了新模型最佳控制的存在性并刻划出其结构。
The article analyses the existent problems and the noticeable points on the work of importing equipment in college, and brings forward some thoughts and countermeasures.
剖析了高校技术装备进口工作中存在的问题和注意点，并就应对的思路和对策谈了一些看法。
The principal, component and performance of this kind of sensors are demonstrated, also some existent problems and the research direction in future are discussed.
对其原理、组成和性能进行了评述，并讨论了一些存在的问题和今后的研究方向。
Some existent problems about construction management of concrete in winter are explored in this paper.
探讨了冬期混凝土施工管理所存在的问题，并提出相应的解决办法。
In the paper, some remarks are made on several primary testing methods of causality, and the existent problems in these testing methods analyzed thoroughly.
文章对几种主要的因果关系检验方法进行了评析，并针对这些检验方法存在的问题作了深入分析。
Then with position quotient law, each department structure of 9 biggest cities has been carried out preliminary analysis, and has been revealed some existent problems.
并运用区位熵法对9个最大城市的部门结构进行了初步分析，揭示了其中存在的一些问题，最后运用统计分析方法对各城市主导产业进行了分级。
The study of distributed involves the study of distributed processing technology, net work technology and database study, which must be related to solution on some real existent problems.
分布式数据库系统的研究涉及分布式处理技术、网络技术和数据库技术的研究，而这些研究必须贯穿在对一些现实问题的解决之中。
This article analyzes some existent problems in connection with marking subject words and in the course of research at present, at the same time, it put forWards improvement methods.
本文针对目前主题词标引和检索过程中存在的问题进行了分析，提出了改进的方法。
The solar energy storage technology and its application in the wood drying system were introduced, and existent problems and some proposals were pointed out.
介绍了太阳能蓄热技术及其在木材干燥系统中的应用以及存在的问题与建议。
Strengthening the construction of teachers' morals has important significances. This paper puts forword some countermeasures according to the existent problems in the teachers' morals at present.
加强师德建设具有重要意义，本文针对当前师德建设中存在的问题，提出了相应的对策。
This thesis starts from performance examination theory and method, together with some idiographic case of Liji Real Estate Corporation, it analyzes existent problems and proposed modified plan.
本文从绩效考评理论和方法出发，结合立基房地产公司的具体状况，分析其存在的问题，并提出改进的方案。
This paper concisely has retrospected the situation of the energy sources in Qinghai are being synthetically used, analyzed the existent problems, and put forward some...
本文简要回顾了青海能矿资源综合利用工作的开展情况，分析了存在的问题，提出了提高青海能矿资源综合利用水平的政策建议。
This paper concisely has retrospected the situation of the energy sources in Qinghai are being synthetically used, analyzed the existent problems, and put forward some...
本文简要回顾了青海能矿资源综合利用工作的开展情况，分析了存在的问题，提出了提高青海能矿资源综合利用水平的政策建议。
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