查询词典 extremal element

Incurrent research, aiming at the rupture problem engendered in the shooting process of acertain 5.56mm automatic rifle, the strain and stress distributions on the cartridge caseunder the action of axial pull have been analyzed. Based on the theories of elastic-plasticmechanics and contact mechanics, a mathematic and physical model of the cartridge-caseand chamber system has been set up; and based on the platform of the general softwarepackage APDL of ANSYS for finite element analysis, a parameterized model of thecartridge-case and chamber system has also been established. The method for nonlinearFEA has been adopted to analyze the stress distribution on the entire cartridge-case andchamber system, and the method of contact element has been employed to investigate thecontact stress between the cartridge case and chamber, and then the influences of frictioncoefficient and locking space on the static and dynamic stress and strain response of thecartridge case and chamber to the action of power gas have also been discussed. On thebasis of a lot of numerical tests, a kind of element Plane13, which is concentrated incoupled computation of heat and construction, has been used finally to simulate thetransient response of the cartridge-case and chamber system to the power gas. Throughloading the temporary thermal characteristics of explosive gas in the procedure of emulate, the corresponding transient thermal stress distributed on the entire system under thecombined load of transient thermal stress and transient pressure has been obtained. Owingto these comprehensive considerations, the numerical results obtained in this paperrepresent the actual situations comparatively exactly.

本文针对某5.56mm自动步枪在工作中出现断壳的问题，分析了弹壳在轴向拉力作用下的应力应变；基于弹塑性力学及接触理论，建立了弹壳弹膛系统的数学、物理学模型，在通用有限元ANSYS软件的参数化建模工具APDL平台上，建立了弹壳弹膛系统的参数化模型；采用非线性有限元法计算了弹壳弹膛系统的整体应力，引入接触单元法分析弹壳和弹膛的接触压力，探讨了在不同的摩擦系数和不同的闭锁间隙对弹壳弹膛静、动态响应的影响；本文进行了大量的尝试，最后确定采用热、结构耦合单元Plane13，在计算中加载了火药气体的温度历程，成功的获得了弹壳弹膛系统在瞬态的热载荷和瞬态的压力载荷同时作用下弹壳弹膛系统的热应力数值解，考虑因素全面，比较真实的反映了弹壳弹膛系统在火药气体压力和热载荷下作用的情况。

A new region was nominated as "Qinling-Huaihe Region" which includes Gansu,Shaanxi,Henan,Hubei,Anhui and Jiangsu.In this new region,East Asia element is predominant,and Palaearctic element is equivalent to the Oriental element.

多元相似性聚类分析结果显示，台湾和华中关系密切于华南；内蒙古和东北区的关系密切于西北；河南、湖北、陕西、甘肃、安徽、江苏6省聚为一个&秦岭淮河区&，这个新分布区的特点是，东亚成分占优势；古北成分和东洋成分相等；古北东洋两界的分界线横贯全区。

The spectral element method based on a weak elastic mechanical equation extends the equation in the form of spectral with the idea of the finite element method. So it combines the advantages of the finite element method with the ones of the pseudospectral method.

谱元法是基于弹性力学方程的弱形式，运用有限元的思想在单元上进行谱展开，理论上该方法具备有限元适应任意复杂介质模型的韧性和伪谱法的精度。

The abundance and occurrence state of an element shows its difference in affinity and could provide important information for the geochemistry system and for the behaviors of an element in the system. The occurrences states of Pt and Pd in the parental rocks and in the fluid inclusions of the Western Guizhou Province basalt are studied. The result of this study shows the importance of determing the occurrence state of an element using its affinity, revealing that the PGE can be used in studying the migration and enrichment of elements in syngenetic fluid of the basalts.

对黔西基性玄武岩原岩与流体包体中Pt、Pd的赋存状态进行研究，结果说明了利用元素亲合性对指导其赋存状态查定的重要性，同时表明了研究该地区玄武岩中同生流体包体中铂族元素对重演古流体中元素迁移与富集具有重要的理论与实际意义。

The only thing that needs to happen is that when we switch from the default rectangle to the new element that the events are unwired from the old element and then wired up to the new element.

唯一需要做的是，当我们从默认矩形切换到新的元素的事件无线旧元素，然后有线到新的元素。

This article, based on key technique and different objective conditions in terms of geography and geology, such as soft soils, shallow water, and heavy sludge seen in ChangHong tunnel, presents features of key construction technique in ChangHong Project, such as slope stability and bottom settlement control in dry dock, cracks control and freeboard control technique respectively for element fabrication, pile foundation construction, and piles-tube connection technique, such technique like, sludge cleanup in immersion trench, and element sinking/positioning technique together with element joint (including connection to abutment and final joint).

文章根据沉管隧道工程建设的关键技术和宁波常洪隧道工程土软、水浅、淤重等客观地质地理环境条件，介绍了宁波常洪沉管隧道工程的施工技术特点，如干坞边坡稳定和管底基础变形的控制技术、本体防水混凝土管段制作的裂缝和干舷控制技术、管段江中桩基基础的施工和其与管底连接的技术工艺、管段基槽清淤和沉放定位施工技术，以及管段接头连接（包括与岸边段的连接和最终接头）的施工技术等。

This article, based on key technique and different objective conditions in terms of geography and geology, such as soft soils, shallow water, and heavy sludge seen in ChangHong tunnel, presents features of key construction technique in ChangHong Project, such as slope stability and bottom settlement control in dry dock, cracks control and freeboard control technique respectively for element fabrication, pile foundation construction, and piles-tube connection technique, such technique like, sludge cleanup in immersion trench, and element sinking/positioning technique together with element joint (including connection to abutment and final joint).

本文根据沉管隧道工程建设的关键技术和宁波常洪隧道工程土软、水浅、淤重等客观地质地理环境条件，介绍了沉管隧道工程的施工技术特点，如干坞边坡稳定和管底基础变形的控制技术、本体防水混凝土管段制作的裂缝和干舷控制技术、管段江中桩基基础的施工和其与管底连接的技术工艺、管段基槽清淤和沉放定位施工技术，以及管段接头连接（包括与岸边段的连接和最终接头）的施工技术等。

This article, based on key technique and different objective conditions in terms of geography and geology, such as soft soils, shallow water, and heavy sludge seen in ChangHong tunnel, presents features of key construction technique in ChangHong Project, such as slope stability and bottom settlement control in dry dock, cracks control and freeboard control technique respectively for element fabrication, pile foundation construction, and piles-tube connection technique, such technique like, sludge cleanup in immersion trench, and element sinking/positioning technique together with element joint (including connection to abutment and final joint).

本文根据沉管隧道工程建设的关键技术和宁波常洪隧道工程土软、水浅、淤重等客观地质地理环境条件，介绍了沉管隧道工程的施工技术特点，如干坞边坡稳定和管底基础变形的控制技术、本体防水混凝土管段制作的裂缝和干舷控制技术、管段江中桩基基础的施工和其与管底连接的技术工艺、管段基槽清淤和沉放定位施工技术，以及管段接头连接（包括与岸边段的连接和最终接头）的施工技术等。中国诺宇综合网http：//www.siaaa.com

This article, based on key technique and different objective conditions in terms of geography and geology, such as soft soils, shallow water, and heavy sludge seen in ChangHong tunnel, presents features of key construction technique in ChangHong Project, such as slope stability and bottom settlement control in dry dock, cracks control and freeboard control technique respectively for element fabrication, pile foundation construction, and piles-tube connection technique, such technique like, sludge cleanup in immersion trench, and element sinking/positioning technique together with element joint (including connection to abutment and final joint).

本文根据沉管隧道工程建设的关键技术和宁波常洪隧道工程土软、水浅、淤重等客观地质地理环境条件，介绍了沉管隧道工程的施工技术特点，如干坞边坡稳定和管底基础变形的控制技术、本体防水混凝土管段制作的裂缝和干舷控制技术、管段江中桩基基础的施工和其与管底连接的技术工艺、管段基槽清淤和沉放定位施工技术，以及管段接头连接（包括与岸边段的连接和最终接头）的施工技术等。中国论文联盟http：//www.lwlm.com

As far as time alignment is concerned, in a certain space, IR element distends in quantity and evolves in quality to accumulate IR as time goes by. While as far as space alignment is concerned, in some certain time, IR element has diversion and exchange in quantity and quality to make the IR element flow.

从时间序列看，在一定空间中信息资源要素随着时间推移而发生量的扩张和质的演进是为信息资源积累；从空间序列看，在一定时间内信息资源要素随着空间变迁而发生的量与质的转移、交换等现象是为信息资源要素流动。

You can buy sweetened beverages, if that suits you.

你若喜欢的话，可以买些含有糖精的混合饮料。

As many of you are probably aware, Nick and Vanessa were recently faced with an embarrasing sex scandal after naked pictures of the two getting jiggy with it in a hot tub surfaced the net.

正如很多你可能知道，尼克和 Vanessa 最近面临一个尴尬的绯闻事件后，赤裸裸的图片两个越来越jiggy与它在浴缸中的一个热点浮现净。