结构的

Numerical results demonstrated that there are three kinds of the instability for the under-expanded supersonic jets according to their shock cell structure patterns:(1) the regular reflection shock cell with a single shear layer,(2) the Mach reflection shock cell with two shear layers and (3) the curved Mach stem with a relatively high expansion ratio.

计算结果表明欠膨胀超声速射流的失稳机制根据射流激波结构的特征可分为3种失稳模式：具有规则反射激波结构和单一剪切层特征的射流不稳定性；带有马赫反射激波结构和双剪切层特征的射流不稳定性；具有弯曲马赫杆和高度欠膨胀射流的不稳定性。

The evolving path of ownership structure can follow the self-moving evolution,artificial choice and artificial design.

认为所有制结构变迁可以遵循的路径有自发演进、人为选择和人为设计，而在这些路径中最优的路径是遵循所有制结构的自发演进，即按照对资源配置效率的高低形成动态均衡的所有制结构。

The results obtained by electron microscopic observation show that the supercoiled pUC18 DNA adopts a doughnut-like solenoidal structure with outside diameter about 43.8 nm and inside diameter about 2.0 nm in ammonium acetate-H2O medium.

观察结果显示：在疏水性的甲酰胺-水展开系统中，DNA采取通常的互缠式结构；在含有1.5 mmol/L醋酸铵的水介质中制备的超螺旋DNA标本，DNA采取线圈型结构，测得pUC18 DNA分子这种结构的外直径约为43.8 nm，内直径约为2 nm。

While the ownership structure is so special formed by the special situation of our country, it will be useful to perfect the security market and optimize the ownership structure to study how the special ownership affect the dividend policy.

而我国特殊的国情形成了我国特殊的股权结构，研究我国特殊股权结构下对股利政策的影响将有助于我国证券市场的完善和股权结构的优化。

The structures of cylindrical shell and spherical shell are basic components and widely used in industrial fields.

圆柱壳、球壳结构是工程领域中普遍应用的基本构件，研究该类壳体结构流固耦合辐射声场，对国防武器装备隐身技术的进步、工程结构的噪声控制及现代机电产品的低噪声优化设计等都具有重要的理论价值和现实意义。

The author attempts to approach and compare the novel and the film from a structuralist perspective.

结构主义注重对文本结构的分析，通过分析大量的文学作品的结构及功能来揭示其中的规律，进而来揭示文学的实质和意义。

Founded on above theoretical and experimental results, the calculating model used for designing purpose of ACMR was proposed, and the structure's simplified designing formula was derived from its loading and buckling mechanism.

在上述理论与试验研究的基础上确定了这种结构的设计计算模型，从这种结构的受力及破坏机理出发推导了结构简化设计公式，并通过大量的二阶分析确定了公式中的所有系数。

We introduce the notion of characteristic pairs and give the definition of dual characteristic pairs of Dirac structures on Lie bialgebroids. Using the dual characteristic pairs, we give the if and only if conditions for which a maximally isotropic subbundle of the double of a Lie bialgebroid is a Dirac structure.

本文在李双代数胚上，引入了Dirac结构的特征对并给出对偶特征对的概念，利用对偶特征对，给出李双代数胚double的极大迷向子丛是Dirac结构的充要条件；其次，分别利用特征对与对偶特征对，将可约Dirac结构分为第一类可约与第二类可约，在此基础上，建立Poisson流形的两类对应约化定理。

The process of industry structure optimization and adjustment is the process of increasing benefit, otherwise, if we want to increase economic benefit, we must optimize and adjust industry structure, so the task of industry structure optimization will be subsistent forever.

结构优化调整的过程就是提高效益的过程，反之，要想进一步提高经济效益，则必须进行产业结构的优化调整，结构优化的课题是永远存在的。

The density of states and energy band structure of the monoclinic crystal in low temperature and the tetragonal crystal in high temperature have been studied.

研究了低温单斜晶型和高温四方晶型结构的VO2电子态密度和能带结构，通过分析发现，四方晶的金属性比较明显，这是由于电子态密度和能带结构分析结果表明不同特性产生的原因是V原子的3d电子贡献不同导致的。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。