应用力学

Since a proposed application of Dirac structures is to the reduction of some mechanical systems, the reduction of Dirac structures is considered in detail in this paper, without using the existence of momentum mappings or the introducing of the notion of admissible function, etc..

因为引入Dirac结构的—个基本目的即应用于一些力学系统的约化，本文详细地讨论了Dirac结构的约化问题，包括其在Poisson流形以及Jacobi流形等的约化中的重要应用，重点利用了Dirac结构的特征对以及对偶特征对的工具，从而避开了讨论矩映射的存在性以及容许函数等一些复杂概念的介入。

Differential geometry is widely applied into the mechanics and engineering technology.

微分几何在力学和一些工程技术方面有广泛的应用，但在地质学中的应用还相对缺乏。

But, in fact, the application of contour integral is more important, its application in integral calculus, physics and engineering science is quite extensive.

但更重要的是其应用，周线积分在积分学、力学、工程学方面应用相当广泛。

The physical and mechanical properties of diabase, the index of asphalt mixture with diabase aggregate, the performance index of experimental section were obtained which fully proved the feasibility of the usage of diabase in wearing surface layer. Finally, the construction technics was put forward.

本文通过室内试验和现场试验的方式，对辉绿岩作为沥青混凝土上面层集料的应用进行研究，得出了辉绿岩集料的各种物理、力学性质，辉绿岩拌制的沥青混合料的各项指标，试铺路段各种路用指标，证明了辉绿岩作为沥青混凝土上面层集料是完全可行的；最后提出辉绿岩作为沥青混凝土上面层集料应用的施工工艺。

At the same time, good Dickson has been committed to the steel structure and mechanical application of the theory of technology research and application of research results to keep the shelves of the design and manufacture.

同时，佳德信公司一直致力于钢结构应用技术及力学理论的研究，并不断将研究成果应用于货架的设计和制造。

In this paper, starting from the double integral, double integral first introduced the basic concept and calculation method, the re - Top songs integral cylinder volume and surface area, for example in the application, as well as the double integral in the application of mechanics.

本文从二重积分入手，首先介绍了二重积分的基本概念和计算方法，二重积分计算曲顶柱体体积和曲面面积的在应用举例，以及二重积分在力学中的应用。

To present a comprehensive study of magnetorheological materials, we also give an investigation on the dynamic mechanical behavior of the double-barreled configuration in a MRF damper.

作为一个对电磁流变材料的连续认识过程，在附录中给出了双腔型MRF阻尼器的力学性能研究，揭示了剩磁作用对MRF应用器件的影响以及MRF应用器件的复杂性与不稳定性。

Similarly, the new method was applied to analyses three-dimensional entity structures. The hexahedron element with 8 nodes was selected to solve the structures. Some examples were listed, and the results show that cellular element method can solve space problems well.

同时，还应用该方法分析三维实体结构，以8节点六面体等参元为例进行了数值试验和讨论，证明该方法在弹性力学空间问题中的应用同样是有效的。

In order to increase accuracy and safety of thoracic vertebral pedicle implantation, the implants positioning, imbedding method, as well as biomechanic characteristics were studied, and CT scanning was used as assistants.

在胸椎椎弓根植入物的临床应用上，为了提高置入的准确性、安全性，研究者对植入物定位、植入方法及生物力学特点进行了大量研究，并开始应用CT扫描导航辅助胸椎椎弓根钉置入。

SiC ceramic has been extensively applied in precision bearings, sealing element, steam-turbine rotor, burner nozzle, heat interchanger parts, atomic reactor materials and etc. because of its excellent properties in high temperature mechanical properties, antioxidatio, abrasion resistance, thermal stability, smaller coefficient of thermal expansion, larger thermal conductivity, hardness, thermal shock and chemical corrosion.

SiC陶瓷具有优良的高温力学性能，抗氧化性强、耐磨损性好、热稳定性佳、热膨胀系数小、热导率大、硬度高以及抗热震和耐化学腐蚀等优良性能，被广泛应用于精密轴承、密封件、气轮机转子、燃烧喷嘴、热交换器部件及原子热反应堆材料等，并日益受到人们的重视，应用前景十分广阔。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。