恰當微分 的英文怎麼說
中文拼音 [qiàdāngwéifēn]
恰當微分
英文
complete differential-
Exact differential form
恰當微分形式With development of industry, there are a lot of new kinds of physcial models, of these there is one that can not be described only by impulsive differential system. in this case, we should switch to a new set of differential equations taking into consideration momentary perturbations of impulsive nature. a general description of such systems was called impulsive systems with variable structure
隨著工業的發展，出現了許多新的物理模型，其中有一類僅用脈沖微分系統無法恰當地描述，這時，就需要考慮具有瞬時脈沖攝動性質的一族新的脈沖微分方程，對這樣的系統我們一般稱為具有可變結構的脈沖微分系統。The first part, the theory and application about wu - ritt differential characteristic sequence method are discussed, which involves the theories of differential equations, abstract algebra and computer algebra etc. we apply wu - ritt differential characteristic sequence method ( abbr. wu - ritt method ) to linear partial differential equations which has physics significance and give the size of solutions and formal taylor solutions
本文共分兩部分，第一部分討論微分特徵列法的理論和應用問題，涉及到微分方程，抽象代數，計算機代數等重要學科。將吳方法應用到具有物理意義的線性偏微分方程上去，我們給出了型序，驗證了張鴻慶教授八十年代給出的恰當解的概念，刻劃了解的規模並給出了形式冪級數解。The paper hopes to extract a solution of a nonlinear partial differential equation, a quite new model, of low - permeability gas reserves, then studies the penetraial character. the pose of the model has already been proved theoretically [ 4 ], which encourages us to seek an aptitude numerical calculation and to realize the computation
本文希望對一個低滲透氣藏非線性偏微分方程的數學新模型的求解，來研究具有滑脫效應下的滲透特徵，利用模型的適定性在理論上已經獲證的結果，探尋恰當的數值計算方法並且實現編程實現計算機電算化。The second part is just the exploration of such economic logic and concludes that new institutional economics and information economics performs better than traditional microeconomics when discussing venture capital financing problems. the third part firstly gives a model to explain why venture investors choose to invest in venture capital institutions against investing directly by themselves
指出傳統的微觀經濟學由於建立在完全市場假定基礎上以及忽略了制度問題，因而在分析風險資本融資制度方面具有很大的局限性；而基於新古典經濟學內核的新制度經濟學與信息經濟學則恰當的為此問題提供了理論基礎和分析工具。My son ' s 17 ) transfixed half turn of the head now seemed perfectly appropriate. life, with all of its fragile wonders, should always be pulling us in
兒子那張側轉著臉的照片如今看來倒是十分恰當。生活，孕育著種種微妙的奇跡，它總是令我們神往。分享友人