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The finite element model contains the establishment of the model with variable section element and the disposal of the boundary conditions of the suction valve with point stop and the discharge valve with back plate.

本文采用变截面梁单元建立了吸气与排气舌簧阀的有限元模型并处理了具有点状升程限制器的吸气阀片和具有背板曲线升程限制器的排气阀片的边界条件。

The finite element structure analysis for sulfurous acid purpose tank car-body is studied through the methods of contact nonlinear and couple degrees of freedom by using the finite element software ANSYS.

利用ANSYS有限元计算软件，采用接触非线性与耦合自由度两种方法对亚硫酸罐车车体进行有限元结构分析，并就两种方法的计算结果作了详细的对比。

Based on the Y element, a novel element Frequency selective surface is presented in this paper.

从传统的频率选择选择表面Y孔单元出发，提出了一种新单元。

A novel method of data processing between the finite element deformation results and the surface distortion of optical element was presented and compared with the traditional method.

提出了一种新的有限元变形结果与光学元件面形畸变之间的数据处理方式，并与传统方式进行了对比。

It is also pointed out that an n-mode boson coupled quadratic Hamiltonian can be diagonalized by a "negative unitary" matrix which is an element of complex symplectic group SP(2n,c),and an n-mode fermion coupled quadratic Hamiltonian can be diagonalized by a unitary matrix which is an element of complex fermion group F(2n,c).

并且指出，对于n模玻色子耦合二次型哈密顿量，通过一个负幺正矩阵它是复辛群SP(2n，c的元素可以把它对角化；对n模费米子耦合二次型哈密顿量，通过一个幺正矩阵它是复费米群F(2n，c的元素可以把它对角化。

In this method, FEM and BEM decrease the calculation time, and tetrahedral element method can avoid deformation element.

有限元和边界元相结合的方法大大减少了计算工作量和计算时间；模型中采用四面体单元剖分线性单元网格，很好地避免了传统方法中出现的准六面体畸形网格。

The solid finite element model of the knuckle has been built using a second order solid tetrahedron element.

这一坚固的转向节模型是由坚固的二级四面体单体元素做成的。

A system for transmitting a signal via diversity antennas (60, 70; 150, 160, 170, 180; 190, 200) includes: at least one delay element (100) for generating at least one delayed replica of the signal subject to a given delay; the signal and the at least one delayed replica being adapted to be transmitted via the diversity antennas (60, 70; 150, 160, 170, 180; 190, 200), and a control unit (110) for the at least one delay element (100) for varying (110) the given delay (100), whereby the signal and the at least one delayed replica, transmitted via the diversity antennas (60, 70; 150, 160, 170, 180; 190, 200), give rise to alternate constructive and destructive combinations therebetween.

一种用于经由分集天线(60、70；150、160、170、180；190、200)传送信号的系统包括：用于生成受到给定延迟的信号的至少一个延迟复件的至少一个延迟部件(100)；该信号和该至少一个延迟复件适合于经由该分集天线(60、70；150、160、170、180；190、200)传送，以及用于至少一个延迟部件(100)改变(110)该给定延迟(100)的控制单元，由此该信号和该至少一个延迟复件经由分集天线(60、70；150、160、170、180；190、200)传送，导致在其间交替的建设性和破坏性组合。

On the basis of their major and trace element geochemistry of these four Fms., the Beitashan and Yundukala Fms. include tholeiite and calc-alkaline series, characterized by the enrichment of large ion lithophile elements, and the high field strength element contents close to MORB, which suggest that they formed an arc-island setting.

对这4个组火山岩的主要元素、微量元素地球化学特征研究表明，北塔山组和蕴都喀拉组为拉斑和钙碱性系列，并且均具有大离子亲石元素富集，而高场强元素与MORB相当，说明其为岛弧环境。

The basalt is belong island arc tholeiite and series of the calc-alkaline,and have character of island arc in rare earth element and trace element.

玄武岩属岛弧拉斑玄武岩和钙碱性系列，属太平洋型钠质类型，稀土、微量元素显示具岛弧特征，大地构造位置为岛弧中心靠近大洋一侧，与南侧那拉提晚泥盆—早石炭世侵入岩共同组成火山弧，同为古亚洲洋向北俯冲的产物。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。