查询词典 forecasting theory

For the Riemann boundary value problems for the first order elliptic systems , we translates them to equivalent singular integral equations and proves the existence of the solution to the discussed problems under some assumptions by means of generalized analytic function theory , singular integral equation theory , contract principle or generaliezed contract principle ; For the Riemann-Hilbert boundary value problems for the first order elliptic systems , we proves the problems solvable under some assumptions by means of generalized analytic function theory , Cauchy integral formula , function theoretic approaches and fixed point theorem ; the boundary element method for the Riemann-Hilbert boundary value problems for the generalized analytic function , we obtains the boundary integral equations by means of the generalized Cauchy integral formula of the generalized analytic function , introducing Cauchy principal value integration , dispersing the boundary of the area , and we obtains the solution to the problems using the boundary conditions .

对于一阶椭圆型方程组的Riemann边值问题，是通过把它们转化为与原问题等价的奇异积分方程，利用广义解析函数理论、奇异积分方程理论、压缩原理或广义压缩原理，证明在某些假设条件下所讨论问题的解的存在性；对于一阶椭圆型方程组的Riemann-Hilbert边值问题，利用广义解析函数理论、Cauchy积分公式、函数论方法和不动点原理，证明在某些假设条件下所讨论问题的可解性；广义解析函数的Riemann-Hilbert边值问题的边界元方法是利用广义解析函数的广义Cauchy积分公式，引入Cauchy主值积分，通过对区域边界的离散化，得到边界积分方程，再利用边界条件得到问题的解。

Since the 19th century, classical celestial mechanics system and the formation of planets and the moon Sports theory has become a complete theory of .19 century to the 20th century, 50 years is the period of modern celestial mechanics, improved analytical methods, additional qualitative methods and numerical methods .50 years after the study of celestial mechanics celestial object from the solar system be extended to man-made objects Movement Theory, as well as a few star systems, broadening the field of study.

此后到19世纪末，经典天体力学体系形成，大行星和月球运动理论已成为完善的理论。19世纪末到20世纪50年代是近代天体力学时期，改进了分析方法，新增加了定性方法和数值方法。50年代以后，天体力学的研究对象从太阳系天体扩展到人造天体运动理论以及为数不多的恒星系统，拓宽了研究领域。

The research of chemisorption is conducted in three aspects, namely, macro theory, micro theory and statistical theory.

化学吸附的研究可分为宏观理论、微观理论、统计理论三个方面。

Firstly, reviews the American blockbuster development the history, analyzes it from the theory and the practice to have the development inevitability, and elaborates the achievements of the American blockbuster from the cultural, artistic and commercial dimensions, and then reveals its external manifestations as an important cultural industry in the United States. Secondly, discusses choicely and emphases the successful elements of the American blockbuster: the operational ideas, marketing strategies and industry chain model, the three-parts binds into the indivisible entirety, which shows the internal motivation of its continuing development. Thirdly, analyzes our country movie's development present situation, and elaborates its exist deficiency, and inspects and analyzes the question which existed in the practice development, which will provide the theory and the practice foundation for as follows. Finally, combines the analysis and understanding of the American blockbuster in theory and the current development situation of the domestic film, it puts forward several noteworthy viewpoints about the future development of China's film industry.

首先，以考察的眼光回顾美国大片发展的历史，从理论和实践上分析其发生发展的必然性，并分别从文化、艺术、商业三个维度阐述了它所取得的成就，揭示了它作为美国重要文化工业的外部表现形态；然后，有选择有重点的论述美国大片具有的成功元素：制作中的运作理念、发行中的营销策略及其产业链模式，这三者联结成一个不可分割的整体，透析出美国大片得以不断发展的内在动因；接下来，分析了我国电影的发展现状，阐述了其存在的不足之处，考察和分析了在实践发展中存在的问题，为下文提供了理论和实践基础；最后，通过对美国大片在理论上的探析与把握，结合当下国内电影发展状况，提出了我国电影产业在未来的发展中值得注意的几点看法。

The application of rough set theory in incomplete information systems is one of the key problems to study rough set theory in practice. However, it is difficult for classical rough set theory to deal with those incomplete information systems.

粗糙集理论在不完备信息系统中的应用，是将粗糙集理论进一步推向实用的关键之一，而经典的粗糙集理论对不完备信息系统的处理显得束手无策。

Cˉfuzzy set theory ; C ˉfuzzy set theory ; Zadeh's fuzzy set theory ; Classical set theory2000M SC:03E72

Cˉ模糊集合论； C ˇˉ模糊集合论； Zadeh模糊集合论；经典集合论

In theory, kinetic theory of gases with classical mechanics and statistical methods based on the thermal motion and interaction to make the appropriate simplifying assumptions, gives molecular modeling and collision mechanisms, using probability theory dealing with a large number of elements of collective behavior, characterized by the collective movement find the statistical average value.

理论上，气体动理论以经典力学和统计方法为基础，对热运动及相互作用做适当的简化假设，给出分子模型和碰撞机制，借助概率理论处理大量分子的集体行为，求出表征集体运动的统计平均值。

Its main task is to make students understand clearly and wholly the basic theory, analysis result and the latest development of information theorem and coding by teaching and exercises, which can build a substantial theory basis for studying the subsequent courses on the transmission, storage and processing of information, image and speech source compression and coding, and error-correcting coding for computer communication and wireless mobile communication, as well as the research and development of modern code theory.

它的主要任务是通过教学和习题，使学生对信息与编码的基本理论，主要分析结果以及最新的发展有一个清晰和完整的认识和理解。为学习和研究信息的传输，存储和处理相关类的后续课程，以及图像与语音信源压缩编码、计算机网络通信与无线移动通信纠错编码、以及各种现代密码理论与技术的研究和开发，打下坚实的理论基础。

Therefore, his literary semiotic theory has exceeded coeval theory of literature and art of Europe and America, it maybe exactly the root reason that Lotman's theory is fashionable in the west.

因此，他的文艺符号学理论大大超越了欧美同时代的文艺理论学说，这也许正是洛特曼文论风靡西方的根本原因。

Ccording to the philosophical standpoint of the system theory,this thesis discusses the question of the cognation and method theory of the slab structure doctrine which is the leading theory of the modern geological science,and analysises the existent four essential theroetical diffiCulty.

本文根据系统论哲学观，讨论了当代地质科学主导理论板块说的认识论与方法论问题，分析了所存在的四个根本性理论困难，并基此而提出地学发展的理论新命题──地壳及岩石圈板块运动属性的三维与两维之辨。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。