查询词典 finite dimensional

Numerical dispersion characteristic and impedance relationship of three dimensional perfectly matched layers are analyzed under finite difference approximation in this paper, respectively, which show that numerical dispersion relationship of PML is different from that of the FDTD equations and the impedance of homogeneous PML medium is the same as that of free space.

本文分别分析了有限差分近似下三维理想匹配层的数值色散特性和阻抗关系，分析表明，理想匹配层的数值色散关系有别于时域有限差分方程的数值色散关系；有限差分近似下，均匀理想匹配层媒质的阻抗和自由空间的阻抗相同。

In this paper, Smith's finite difference solution of one-dimensional wave equation is applied to two prototype steel pipe testpiles 900 mm o.

本文将一维波动方程的史密斯差分解应用于华北渤海油田的两根开口打入的原型钢管试桩(外径900毫米，变壁厚、桩长分别为69及72米)。

In this paper, Smith's finite difference solution of one-dimensional wave equation is applied to two prototype steel pipe testpiles(900 mm o.d.with variable wall thickness and lengths of 69 and 72 m)which were driven with open ends in the Bohai oil field of North China.

本文将一维波动方程的史密斯差分解应用于华北渤海油田的两根开口打入的原型钢管试桩(外径900毫米，变壁厚、桩长分别为69及72米)。计算结果与现场实测值(包括以后所进行的静荷载试验)相比甚为符合。

Methods:The three dimensional finite method.

三维有限元分析方法。

Objective To establish three dimensional finite element model of the elbow joint, and to test its value in the analysis of stress distribution.

目的 建立肘关节三维有限元模型，并验证其在分析肘关节应力分布中的价值。

In Chapter 4, several problems are involved in linear codes over finite fields with two dimensional modulo metrics.

在第四章中，考虑在两种二维距离之下有限域上线性码的几个问题。

A three dimensional finite element model was established to simulate the forming process of titanium alloy hollow monolithic structure.

建立了钛合金空心整体结构成形过程的三维有限元模型。

The way to establish the three dimensional finite element model of thoracolumbar motion segment is exact and simple.

为胸腰段活动节段三维有限元模型的建立提供了一种简便、精确的方法，为分析和研究该模型在各种情况下的生物力学表现创造了条件。

Thermal-structural analysis was performed for ultrasonic wire bonding by three dimensional finite element method.

用三维有限元方法对超声波线焊进行了瞬态的热-结构分析。

According to the actual structure characteristics of a cable-stayed pipeline bridge, a three dimensional finite element mathematical model is developed.

根据斜拉索管桥的实际结构特点，建立了三维有限元计算模型。

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。