查询词典 mathematic

The use of new σ coordinate is aimed to match the landform better and improve the instance that the normal σ coordinate mathematic models are emanative with complicated landform sometimes.

分析了在新坐标系下应用k-ε模型可能存在的问题，并从模型的特点出发，以对数流速分布为基础，导出了垂向紊动粘性系数的分布公式。

The integrated mathematic model of solidification is then established, which includes heat transfer, solute transfer, liquid flow and the movement of equiaxial crystals in solidification process.

本文通过两相流理论建立了等轴晶在对流金属液中移动的非稳态数学模型，推导了求解等轴晶在非稳态、非均匀液相流场中非稳态移动的数值表达式，并进一步推导了描述等轴晶在凝固过程中迁移、堆积规律的局部堆积方程式。

Cocoon Cooking ; Fuzzy mathematic ; Equiform Priority ratio

煮茧；模糊数学；相似优先比

In order to apply neural network and intelligent control in supermaneuverable flight, the mathematic model of flighter is obtained, and the nonlinear aerodynamic coefficients are identified using computational neural networks, then, a neural network control system for supermaneuver is designed according to the timescale, and a intelligent compensator is givento compensate for the system errors which are caused by the networks training error, no-samples input, disturbance and time-delay, etc, which including the design of knowledge base, blackboard and reasoning engneer, the simulation results of Herbst maneuver demonstrate the designed control system is satisfying.

为了在超机动中应用神经网络和智能控制，本文接着建立了超机动时飞机的数学模型，并利用神经网络对大迎角下非线性非定常气动力进行了辨识建模，然后按时标分离法设计了一个针对超机动飞行的神经网络控制系统。

Part two: The establishment of the model on the evaluation system of surgical practice quality for five-year clinical medicine education In this part methods of level analysis and specialist consultation are applied to weigh all the essential evaluation factors; and on the basis of the weighing, fuzzy mathematics overall assessment is used to establish mathematic models, which will also be testified followingly to assure that the comprehensive evaluation method constructed taking these three parts as main contents is scientific, efficient and feasible so that it can be employed to the evaluation of surgical practice quality of five-year clinical medical students.

第二部分：临床医学五年制外科实习质量评价数学模型的构建运用层次分析法，通过专家咨询，确定各评价要素权重；在确定权重的基础上，用模糊数学综合评判法建立数学模型，并对其进行验证，证明由这三部分为主要内容所构成的综合评价方法是科学、有效、可行的，可应用于临床医学五年制外科实习质量的评价。

In part Ⅱ and part Ⅲ, we not only give the control ideas and design the formular algorithms in the sense of control theory, but also try to give some mathematic proofs.

第二和第三部分，我们既注意从通常控制理论出发，给出具体算法以及产生这个算法的的控制论观点，同时我们也尽可能对于算法中的有关数学问题作了严格证明。

The feature of this paper is the combination of theoretical analysis with practice study; the using of mathematic tool to solve frondose problem. From the structure arrangement, the emphases of this paper is trenchant.

本文的特色在于注重理论与实践相结合；在定性分析的同时充分运用定量分析工具以解决具体问题；同时在结构安排上祥略有次，重点突出。

Then, the conventional mathematic model for laminar cooling can be optimized by developing a fuzzily dynamic model.

实测数据运算表明，该方法可以将原模型的卷取温度控制精度提高1%~2%，具有很好的应用前景。

The diluent solution of glyoxylic acid and oxalic acid was used as the separation object.TOA (in n-octanol) was used as the solvent. The extraction characteristics of single acid and two-acid solution were studied,and the influence of pH and the concentration of complexing agent on the distribution coefficients were measured. The suitable mathematic models were proposed to describe the relationship between TOA and carboxylic acid based on assumed extraction reaction in organic phase.

摘 要：以草酸和乙醛酸的稀溶液为分离对象，采用三辛胺为萃取反应剂、正辛醇为稀释剂，研究了单溶质、双溶质有机酸的萃取分离特性，测定了溶液pH值、萃取反应剂的浓度等因素对双溶质有机酸萃取的影响，提出了萃取的化学反应发生在有机相中的假定，建立了TOA萃取草酸的数学模型。

The diluent solution of glyoxylic acid and oxalic acid was used as the separation object. TOA (in n-octanol) was used as the solvent. The extraction characteristics of single acid and two-acid solution were studied, and the influence of pH arid the concentration of complexing agent on the distribution coefficients were measured. The suitable mathematic models were proposed to describe the relationship between TOA and carboxylic acid based on assumed extraction reaction in organic phase.

以草酸和乙醛酸的稀溶液为分离对象，采用三辛胺为萃取反应剂、正辛醇为稀释剂，研究了单溶质、双溶质有机酸的萃取分离特性，测定了溶液pH值、萃取反应剂的浓度等因素对双溶质有机酸萃取的影响，提出了萃取的化学反应发生在有机相中的假定，建立了TOA萃取草酸的数学模型。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。