查询词典 mechanics

With the development of all kinds of electronic instruments and the mechanics widely used in metallography ,scientists can study further the microstructure of metals deeply.

随着各种先进的电子仪器的发展，以及力学在金属学中的更为广泛的应用，科学家可以对金属微观结构进行越来越深入的研究。

The mechanics and effect of nano-aditives on W-Ni-Cu alloy characteristics were studied. By means of SEM and metallography analysis technology, the alloy structure and morphology were observed,and physical and mechanical properties of the samples were measured.

摘 要：研究了纳米添加剂对W-Ni-Cu合金性能的影响和作用机理；用扫描电镜和金相显微分析技术研究了合金的形貌与结构；测量了合金试样的物理力学性能。

Using the generalized mixed variational principle of elastic mechanics, GMVP of Reissner plates is derived, and generalized mixed finite elements method of Reissner plates is established too.

用一般弹性体的广义混合变分原理，导出了适合 Reissner板弯曲问题的广义混合变分原理及其有限元广义混合法。

In this paper, we study the decreasing types of the output of oil field opened by pouring water and the successive approximation method of its solution in mathematics and seepage flowing mechanics.

从数学和渗流力学概念对注水开发油田产量递减类型和判别求解方法进行了研究，提出产量递减类型应为指数递减和双曲线递减两种类型；双曲线递减的递减指数n的变化范围应为0＜n＜∞；递减类型判别和递减参数求解方法可以根据最小二乘法原理，采用数学逐次逼近法直接求解产量随时间递减的关系式。

A series of formulae of calculating physical base and space metric tensor for 3-dimensional non-Cartesian tensor are presented which can be used to obtain the mathematical model for describing geometry and mechanics of continua such as oil and gas in energy-deliverying.

文章提出了三维非笛卡儿张量的空间度量张量的一系列计算公式，可借以建立油气输送等复杂系统的动量或能量传递的物理问题在任意坐标系中的数学模型。

This was an early start to using the theories and methods of mechanics to research microchip structure.

这是较早开始用力学的原理和方法来研究芯片的结构的研究工作。

The mechanical behavior that calculating mechanics is used in analyzing the microstructures of crystal material can not only improve the development of itself, but also plays an important role in the development of micromechanics.

把计算力学用于分析晶体材料微观结构的力学行为，不仅可以促进计算力学自身的发展，而且对微观力学的发展也具有重要的作用。

The mechanics condition of ductile fracture of pressure vessel materials and their relations to the fracture criteria were investigated based on the micromechanics .

应用细观力学的观点分析了压力容器材料韧性断裂的力学条件，并考察了其与断裂参量的关系。

Nevertheless, Establishment of macro theory from micro property of material is also the so-called"bottle neck"in the linking study between mechanics and material science. All of these urge us to work on the theory of micromechanics carefully.

但是从材料的微观性质建立相应的宏观理论是力学和材料学这一交叉学科的"瓶颈"，这些促使我们更仔细地研究材料的细观力学理论。

The classical Eshelby formalism (Eshelby,1957), which does not include the interface stress, is landmark work in mechanics of the 20th century, and it is regarded as one of the cornerstones of micromechanics.

经典的Eshelby体系(Eshelby formalism， 1957)是20世纪固体力学领域一项奠基性的工作，被认为是如今蓬勃发展的细观力学的基石之一。

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。