1、

The dynamic buckling of shells, when subjected to a torsional impact at one end, is studied in the present paper on the theory of stress wave propagation and finite element methods.

借助于波动理论和有限元分析方法研究了圆柱壳扭转屈曲的产生机理和发生发展趋势。

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2、

Knowledge is the important element of product creative design. Scientific effect is one of technological knowledge, is the important source in the process of product design.

知识是产品创新设计的重要因素,科学效应是一种科技知识,是设计者在进行产品设计时获取知识的重要来源。

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3、

The dispersion equation for the diffractive optical element is first derived from the grating diffractive theory and the design equation for the hybrid refractive/ diffractive achromatic telescope objective with only one optical material is further derived.

首先从光栅衍射理论出发导出衍射光学元件的色散公式,并进一步推导出用一种材料进行折/衍混合消色差望远物镜设计的公式。

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4、

Temperature field finite element during flat hot continuous rolling process with compact double stand reversing rolling mill was researched, which is the only one in China.

实现了对国内唯一一架双机架紧凑式可逆炉卷轧机板材热连轧的温度场有限元研究。

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5、

A molecule of an element consists of one or more atoms.

元素的分子含有一个或几个原子。

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6、

The nonlinear problem is the hot spot one for structural analysis and design in recent years. The analytic method and the finite element method are utilized respectively to carry out nonlinear analysis for combined thick cylinder.

非线性问题是近年来结构分析与设计的热点问题,文章分别采用解析法和有限元法对组合厚壁圆筒结构进行了非线性分析。

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7、

A two-direction shear deformation finite element model is presented in which a three-dimensional problem is reduced to a two-dimensional one and thus the calculation is much simplified.

文中提出了双向剪切变形有限元模型,使三维问题简化为二维问题,计算工作量大为减少。

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8、

The longitudinal deformation of the element block is governed by the compatibility conditions between the blocks, hence the three-dimensional problem of torsion of the box-girder is reduced to a one dimensional one.

梁段单元沿纵轴线的变形规律由节段间变形的连续条件控制。将箱形梁扭转的空间问题简化为一维问题。

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9、

Thermal-Stress Analysis on One-piece Slant Machine Bed Based on Finite Element Analysis Method

基于有限元的一体式斜床身热-应力分析

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10、

Securities market liquidity is described by price element, volume element and transaction time element usually, but most indicators measure the only one aspect.

证券市场流动性包含了价格因素、量因素和交易时间因素三方面内容,但现有的众多流动性测度指标只衡量市场的某一方面因素。

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11、

Selecting the right time integral method of the finite element equations is one of key techniques of the sheet metal forming numerical simulation.

正确选择板料成形数值模拟有限元方程的时间积分方法是成形模拟成功与否的关键技术之一。

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12、

The storey element, which can model one storey of the frame-shear wall structure is fabricated. Based on SRSS method, the frame-shear wall structure with shear wall interruption at different heights is analyzed. The conditions of interruptable shear wall height are established.

构造能模拟一层框剪结构的层单元,用振型分解反应谱法分析不同高度和结构刚度特征值的断层剪力墙框剪结构的地震反应,设定可中断剪力墙高度的条件。

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13、

One revolutionary element of Haier's approach was, until recently, its self-managing teams and "communities of interest," which competed internally to run the next production or design project.

直至最近,海尔模式的一个革命性要素还是自我管理型团队与“利益共同体”,他们在公司内部相互竞争以负责下一个生产或设计项目。

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14、

The intensive three-dimensional city is one of the effective ways of dissolving problems such as the shortage of living space in the city and the contradiction between three-dimensional urban element and the complanation of the urban bases.

集约型三维立体化城市模式是化解城市生存空间短缺、城市要素立体化与城市基面平面化矛盾等问题的有效途径之一。

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15、

The alloys were extruded in one-shear ES die through thermal simulation instrument. The extrusion results were compared with finite element simulation.

在热模拟机上用ES一次剪切模具进行挤压,并建立有限元模型进行比较分析。

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16、

There exists one-to-one relationship between the sequence structure element's size and the space scale of geography entity.

序列结构元素尺寸与地理实体的空间尺度之间存在着一一对应的关系。

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17、

By means of finite element method, this paper carried out a statics analysis on the complete appliance of three-ring reducer. The reacting force of each structural member and the variation law of Von Mises stress were obtained during one period running of the three-ring reducer.

通过有限单元法,对三环减速器的整机进行了静力学分析,得到了三环减速器运转一个周期时,各个构件的作用反力和VON MISES应力变化规律。

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18、

Most helium result from the combination of one a particle released by decaying radioactive element with two electrons. polonium is the decay daughter of radioactive element radon.

氦主要是放射性元素衰变释放出的a粒子与两个电子结合而成的,钋是放射性元素氡的衰变子体。

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19、

One inescapable element of the mountain is the weather.

另一个不得不说的就是秦岭的气候。

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20、

From the spatial distribution of structural function of one meteorological element, the spatial distribution of the meteorological element interpolative error can be determined, together with the rational tactical interval of meteorological stations.

由要素结构函数的空间分布,可确定要素的线性内插标准误差空间分布,进而可以确定各台站间合理战术内插间距。

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