有限维的

At the same time,the finite element model of base plate is used in modal analysis and transient dynamic analysis by means of the elasticity finite element method.

为了优化发射器座钣的结构设计，采用有限单元法对某型号发射器座钣三维空间板壳结构进行了整体三维建模，同时运用弹性力学有限元法对座钣建立的有限元模型进行模态分析和瞬态动力学分析。

The absorbing performance of one dimensional PML is theoretically analyzed and numerically simulated in view of the error caused by finite difference approximation, respectively, whose results show that this theoretical analysis can exactly indicate practical circumstances.

在计及有限差分近似造成的误差下，理论分析和数值模拟了一维理想匹配层的吸收性能，结果表明这种理论分析能完全反映实际情况。

A liner and two-dimension finite analytic measure is used to calculate the se

本文采用了Hodges等人于八十年代后期发展的有限转动复合材料梁理论，研究了复合材料旋翼桨叶剖面特性。以Giavotto的线性二维有限元分析模型

In this paper, the finite point method is used to obtain numerical solutions of one-dimensional and two-dimensional inverse heat conduction problems with a source parameter, and the corresponding discrete equations are obtained.

本文利用无网格有限点法求带有源参数的一维和二维热传导反问题，推导了相应的离散方程。

In order to optimize the structure for the firer base plate by means of FEM,A three- dimensional shell model has been set up for a particular type of firer base plate.

为了优化发射器座钣的结构设计，采用有限单元法对某型号发射器座钣三维空间板壳结构进行了整体三维建模，同时运用弹性力学有限元法对座钣建立的有限元模型进行模态分析和瞬态动力学分析。

Physical model of three-dimensional half axis rotor of 110 MW air inner-cooled turbo-generator was established, which included the rotor end, axial ventilation ducts and sub slot ventilation ducts. The rotating turbulence flow field was simulated numerically based on the finite volume method. The air velocity and flow rate distribution characteristics of the rotor end, axial ventilation ducts and sub slot ventilation ducts were analyzed.

建立110 MW空内冷汽轮发电机转子冷却通风道一个槽(包括端部、轴径向及副槽)的半轴向段三维物理模型，并基于有限体积法对该物理模型进行旋转湍流流场数值模拟，分析了端部、轴向段和副槽通风段的空气速度、流量分布特点。

Based on the Maxwell\'s equations, the boundary value problem, variation problem, interpolation function and stiffness matrix in two-dimensional magnetotelluric are derived.

从麦克斯韦方程组出发，推导出二维大地电磁测深的边值问题、变分问题、有限单元法的插值函数以及单元刚度矩阵。

Secondly, based on general FEM theory, this paper has discussed FEM of matchboard cement concrete pavements with and without joints and explained three-dimensional FEM of cement concrete pavements.

2根据一般有限单元法理论，探讨了有无接缝的企口板砼路面有限元分析方法，以及三维混凝土路面的有限元分析方法。

With this model,the temperature growth process and temperature distribution of unit wall of epoxy resin,7740# glass,microcrystal glass and silicon units filled with lead styphnate were obtained by numerical simulation.

根据燃烧传热原理，建立了阵列单元燃烧传热过程的一维有限差分模型，运用此模型对装填斯蒂酚酸铅的7740玻璃、环氧树脂、微晶玻璃和硅药室单元燃烧40~80 ms过程中室壁温度成长和温度分布进行了数值模拟。

In this paper, a new image de-noising method is proposed by using the threshold method based on nonparametric adaptive estimation which is presented by Birge-Massart in Ridgelet domain.

该文在有限Ridgelet域中，结合Birge-Massart等提出的非参数自适应估计理论，提出一种新的二维图像去噪方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。