单元体

The accuracy and efficiency of finite element numerical analysis have close relationship with the mesh quality and density distribution. In order to ensure the hexahedral mesh transition gradually and conformably, a set of 8-refinement based density control templates is proposed newly. The corresponding date structure and template application techniques are also given.

有限元数值分析的精度和效率与网格单元的划分质量以及疏密程度密切相关，针对三维六面体网格单元之间疏密过渡必须平缓和协调的要求，提出了一套基于8分法的六面体网格加密模板，并给出了相应的数据结构和模板应用方式。

In a dust-proof connector for an electronic unit detachably provided in an electronic apparatus in which an air-stream is produced in the apparatus to cool an interior thereof, the connector includes a first type connector half provided on the electronic unit and having a first array of electrical contacts, and a second type connector half provided in the apparatus and having a second array of electrical contacts.

一种可拆地装设在电子装置中的电子单元的防尘连接器，所述电子装置中形成气流以冷却其内部，所述连接器包括设置在电子单元上并具有第一电接点阵列的第一类型连接器半体，以及设置在所述装置中并具有第二电接点阵列的第二类型连接器半体。

They had suppressed the cathodic process of carbon steel electrode. Their inhibition performance was also related with their molecule stereo conformation and electron configuration. Four of bis-(1, 1'-benzotriazoly)-α,β-diamide compounds linked via-CO 〓CO-chain were synthesized and certified by IR and 〓H-NMR. The minimum energy conformations of these compounds were obtained by MM2 forcefield program. The two benzotriazole moiety in BBT1 was more planar than in other compounds. This was beneficial in increasing the inhibition effects of BBT1. In 0.5M H〓SO〓 solution, BBT1 suppressed anodic corrosion reaction. In 3%NaCl solution, BBT1 suppressed both cathodic and anodic corrosion reactions. 1- [ (1'-imidazolly)-methyl] benzotriazole was synthesized by Mannich reaction.

合成了四个通过-CO〓CO-连接的双（1，1'-苯并三唑）-α，ω-二酰胺化合物，采用MM2分子力学程序优化了它们的分子结构，双（1，1'-苯并三唑）-α，ω-二酰胺化合物的缓蚀作用与其分子内两个苯并三唑单元的空间取向有关系，良好的平面性有利于苯并三唑二聚体的吸附和缓蚀作用，苯并三唑二聚体BBT1分子内两个苯并三唑单元近似平行，所以显示出较好的缓蚀效果。0.5M硫酸中BBT1主要抑制铜的阳极溶解的电化学反应；3％NaCl溶液中，BBT1对铜的阳极溶解和氧的阴极还原过程均有抑制作用，相比较而言对阴极过程的抑制作用更大一些。

All faces are mappable or submappable, but the vertex types are specified such that the volume cannot be divided into mappable subvolumes

TGrid/主要采用四面体单元，但是在恰当的地方也用六面体或者，锥体，楔体等单元

Illite fundamental particles showed platy to lath shapes. Platy particles exhibited various spiral growth patterns, i.e. circular, malformed circular, polygonal single unit-cell layer spirals, polygonal parallel step spiral, interlaced spiral patterns, etc.

伊利石单元粒子生长过程中，伊利石单元粒子呈现从板状体到条状体的生长，而板状颗粒又呈现各种螺旋生长图案，有圆形、残缺的圆形、多边螺旋、平行阶梯状螺旋、交错螺旋等。

College of Civil Engineering , Beijing University of Technology, Beijing 100022, China A numerical analysis method for elastic-plastic seismic response of concrete block masonry is presented based on open system for earthquake engineering simulation system. The method simulates concrete block masonry by using equivalent frame model with rigid offsets; the space beam-column elements are simulated by force based nonlinear beam-column elements.

基于地震工程模拟开放系统OpenSees，提出了混凝土砌块砌体结构三维弹塑性地震反应数值分析方法，用带刚域的等效框架模型模拟混凝土砌块砌体结构，空间杆单元采用以力为基础的非线性梁、柱单元。

Secondly, the new concept of the covering element is explained and the static equilibrium equations are introduced.

介绍了阶谱块体单元法的基本理论和应用，提出了动力分析的块体单元法表述公式。

The results show that upper bainite of 9Cr2Mo Steel and GCr15 steel is feathery and the upper bainite carbide is lamellar or claviform. The upper bainite carbide distributes between the subunits of bainite ferrites by and large parallelly to the axis of bainite ferrites. Lower bainite of 9Cr2Mo Steel and GCr15 steel is in bamboo leaf shape and the lower bainite carbide is in shred or fibre shape. The lower bainite carbide distributes between the bainite ferrites, furthermore, the angles between lower bainite carbonide and the principal axis of the lower bainite ferrites are unequal.

结果表明，9Cr2Mo钢和GCr15钢的上贝氏体组织呈羽毛状，上贝氏体碳化物呈长短不一的薄片状或短棒状，分布在铁素体亚片条或亚单元之间，其排列与贝氏体铁素体片条轴向大体上平行分布；下贝氏体组织呈竹叶状或针状，下贝氏体碳化物呈细片状或纤维状等形状，分布在铁素体片中间，大多数与片条的主轴方向交角排列，但角度不等。

By utilizing three benezenemulticarboxylate derivatives (H2chdc, H2aip, NaH2sip), we obtain 12 coordination polymers. Especially, compelexes 1 and 2 are based on one-dimensional ···OHInOHIn···chains as building units, while complex 3 is based on double four-ring [In8(μ2-O)4(μ2-H2O)8]16+, complex 4 is based on trinuclear In3(μ3-O)(CO2)6, complexes 11 and 12 are both based on nested bistranded helices.

选择了三类取代苯羧酸配体： 2，5-二羟基-1，4-对苯二甲酸(2，5-H2chdc)； 5-氨基间苯二甲酸(5-H2aip)； 5-磺酸基间苯二甲酸钠盐(5-NaH2sip)和InCl3反应合成了十二个配位化合物：其中1、2以···OHInOHIn···链为构筑单元， 3以双四元环[In8(μ2-O)4(μ2-H2O)8]16+为构筑单元，4以棱柱状三核铟In3(μ3-O)(CO2)6为构筑单元，而11、12以嵌套的双股螺旋链为构筑单元。

Aiming at the guided entity model of apiece component, some frame boards of skin, ventro-board and crossbeam is simulated with curve surface, strengthen rib, frame and bars are simulated with curves in this paper, predigesting entity models to geometry models.

在ANSYS中，选取体单元solid45、壳单元shell63、梁单元beam188、质量单元mass21分别对相应的几何模型划分网格，用耦合方程实现23-3航炮所简化的质量元同炮舱结构其它组件的连接，建立了炮舱结构的有限元模型。

I'm strongly against the death penalty — it's an eye for an eye.

我不赞成死刑——这是以牙还牙的报复行为。

And to get you the support you need, we're enlisting all elements of our national power: our diplomacy and development, our economic might and our moral suasion, so that you and the rest of our military do not bear the burden of our security alone.

并给你们所须的支援，我们正徵召国家所有各种的力量：我们的外交及发展，我们的经济力量与道德劝说，所以你们与其他军人不须要孤独地负起国家安全的责任。