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The hydraulic pressure system of the multistation bus manufacturing machine was mainly introduced in this article,and its application method of the cutting,punching hole and bending unit were also analyzed.

本文主要介绍了多工位母线加工机液压控制系统,并对其冲孔单元、剪切单元和折弯单元的使用方法进行了说明。

The circuit comprises a comparison circuit, a negation gate and a first coincidence gate, wherein the comparison circuit is used to output read screen signals of a storage unit corresponding with bus signals of a second port address, the negation gate is used to inverse the read screen signals of the storage unit which are corresponding with the bus signals of the second port address, one input end of the first coincidence gate receives the read screen signals of the storage unit which are corresponding with the bus signals of the second port address after being inversed, the other input end of the first coincidence gate receives the read enable signals of a second port, and the output end of the first coincidence gate is connected with the read enable end of the second port.

所述电路包括:比较电路,用于输出第二端口地址总线信号对应的存储单元读屏蔽信号;非门,用于对第二端口地址总线信号对应的存储单元读屏蔽信号进行非运算;第一与门,第一与门的一路输入端接收非运算后的第二端口地址总线信号对应的存储单元读屏蔽信号,第一与门的另一路输入端接收第二端口的读使能信号,第一与门的输出端连接第二端口的读使能端。

First mostly contraposing hull deck structure it goes along FEA analysis, discuss the different influence degree of calculational results between the different simplifications of the mathematical model, thereinto mostly analyse five different simplifications of the deck model; Second contraposing hold section and hull deck structure it goes along FEA analysis together, discuss the different influence degree of calculational results between the different elements style, gridding number and gridding density, thereinto mostly analyse the difference between adopting 8 node shell element and 4 node shell element, nondense gridding and thick gridding, and numerous gridding number and few gridding number, In the end mostly contraposing hold section structure it goes along FEA analysis, discuss the different influence degree of calculational results between the different boundary conditions, thereinto mostly analyse the difference between adopting CCS boundary conditions and LR boundary conditions.

首先主要针对船体甲板结构进行分析研究,讨论结构简化不同对有限元计算结果的影响程度,其中主要研究分析了五种不同甲板结构简化模型;紧接着针对舱段与甲板结构一起进行分析研究,讨论单元类型,网格数量与密度的不同对有限元计算结果的影响程度,其中主要研究分析了分别采用8节点板壳单元与4节点板壳单元的不同,以及分别采用疏的网格与密的网格,多的网格数量与少的网格数量的计算结果的差异。最后主要针对舱段模型进行分析研究,讨论不同的边界条件对有限元计算结果的影响程度,其中主要研究分析了分别采用CCS舱段边界条件与LR舱段边界条件进行有限元计算而带来的结果上的差异。本文第二部分为港工建筑物中的大直径薄壁圆筒结构的有限元比较分析。在研究大圆筒的有限元比较分析中,主要讨论用不同的网格密度与数量来划分网格引起的差异。其中用了网格密,数量多与网格疏,数量少两种模型进行大圆筒结构的有限元分析对比

It was proved that the area coordinates of plane triangle element and the volume coordinates of tetrahedron element are equivalent to the oblique Cartesian coordinates by the analytical and geometrical methods.

本文通过分析法和几何法证明:在有限元法和边界元法中,平面三角形单元的面积坐标或四面体单元的体积坐标与由这些单元的二边或三边构成的斜交笛卡儿二维坐标或三维坐标,尽管定义不同,而其内容却是完全对等的。

An image forming apparatus includes at least one image forming unit configured to form an image, a belt for transferring an image formed by the image forming unit onto a recording material, and an opening and closing unit having the belt and openable and closable relative to a main body of the apparatus.

一种成像设备,包括至少一个构造成用来形成图像的成像单元、用于把所述成像单元形成的图像转印到记录材料上的带、具有所述带并且相对于设备主体能够打开和关闭的开闭单元

Furthermore, we believe that the general rules for understanding the superstructures formed within boundary areas are correlated directly with different overlapping or connecting operation with respect to building units of flattened hexagons and P-B polygons. These rules are as following:I The adjoined domains at least have their basic structural units a side-shared (that is, sharing two column clustersП) The basic structural units in both domains have overlapping area as large as possible.3 For theξ-Al-Ni-Rh phase formed in the as-cast Al75Ni15Rh10 alloy, phase transition processes induced by electron beam irradiation with different amount of dose were studied by in-situ observations in an electron microscope.

本论文提出了畴界的通用模型:各种畴界及其畴界处超结构都可以用一个通用的叠加覆盖模型去表示,覆盖的基本单元为扁六边形或P-B多边形,连接与覆盖规则如下:I相邻畴中的基本单元至少有一个共用边相邻畴中的基本单元重叠时沿b方向有最大重叠面积。3研究了Al75Ni15Rh10合金中ξ-Al-Ni-Rh相在透射电镜电镜中经不同剂量电子束辐照后引起的辐照损伤和相变过程。

Firstly, the three-dimension boundary question and its corresponding variation question concerning the point-source electrical field on a 3-D structure are presented. Secondly, the finite element method is used to solve the variational equation. The study area is divided into many tetrahedral elements. Then, we interpolate with a tri-linear function in each element. So, the variational equation is converted into a linear equation system. Finally, taking into account saving of time, we make use of symmetric successive overrelaxation preconditioned conjugate gradient algorithm to solve large linear system, and obtain the potential value of each node, resulting in the calculation of the apparent resistivity values on the ground surface.

首先给出了三维构造中点源电场的边值问题以及相应的变分问题;然后利用有限单元法求解变分问题,采用四面体单元对研究区域进行剖分,在单元中进行三线性函数插值,将变分方程化为线性代数方程组;最后,考虑到节约计算时间,利用对称超松弛预条件共轭梯度迭代算法求解大型线性方程组,得到了各节点的电位值,进而计算出地表的视电阻率。

In order to solve some problems existed in the fractionation section of paraxylene unit, state space models for xylene column and its reboiler furnaces in the section were set up by analyzing the mechanism and the influence factors.

针对对二甲苯装置二甲苯精馏单元在操作和控制中存在的问题,从机理出发,建立该单元二甲苯精馏塔及其重沸炉的状态空间模型,基于多变量预测控制技术开发了该单元先进控制系统。

Every peripheral unit can control 16 munitions located 20m away from it and connected through wires to it.

防御性军事战地远程控制系统硬件由指控单元、中央单元、直流电源、外设单元和军备组成。

The software of the system comprises a graphical interface of the command and control unit with human operator, a communication interface between command and control unit and central unit, a communication interface between central unit and peripheral units, and a command interface between peripheral units and munitions.

每个外设单元控制与它相连接20m远的16路军备,操作员根据军备功能决定传送信息给中央单元,经解码后传送指令到外设单元并控制电源设备、指挥军备的爆炸。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。