查询词典 two-dimensional distribution

Two dimensional and three dimensional mathematical models for surface roughness and appearance are established.

建立的模型综合考虑了切削用量、刀具几何参数以及系统振动情况的影响，应用建立的模型进行了仿真。

Thus it has more degree of precision than the conventional assessment of two dimensional method and three dimensional method.

但由于部模的"尺度效应"和实船表面的粗糙度原因，两者间的流态和阻力系数都存在着

The theory and construction of two dimensional holospectrum and three dimensional holospectrum are described especially.

着重对二维全息谱、三维全息谱的原理及构建方法进行了说明。

The vacuum system, the two dimensional and three dimensional Magneto-Optical-Trap for the laser cooling and trapping, and the electronics are given special emphasis.

第三章对冷原子干涉仪所需的激光系统进行了详细的研究，提出了相应的激光器的具体的技术指标的要求。

We developed a 2D3V (two dimensional in space and three dimensional in velocity) particle-in-cell code APIC2D.

该程序的主要特点是对粒子模拟中的一些算法进行了优化，主要工作包括： 1、将等离子体粒子模拟中得到广泛应用的Borris旋转推动粒子方法进行了改进。

Here, on the basis of two-dimensional bar code, a new type of bar code, three-dimensional bar code is designed.

在二维条码的基础上，本文设计了一种新的条码--三维条码。

The book review first vector and matrix algebra, the basic concepts and then described in detail geometry involved in a variety of two-dimensional graphics and three-dimensional geometric measurement of the object, the intersection of various algorithms and other issues, and provides information on the theme of a large number of computational geometry materials in order to facilitate quick reference.

全书先复习了向量和矩阵代数的基本概念，而后详细地描述了图形几何学涉及的各种二维和三维对象的几何测量、相交等问题的各种算法，并提供了关于计算几何学主题的大量材料以便于快速参考。

In this study we combined two-dimensional, Doppler, three- and four-dimensional echocardiography, Transesophageal echocardiography , and the new technique-acoustic quantification with radionuclide ventriculography and right heart catheter examinations a...

本研究利用经胸二维超声、多普勒超声、三维及四维超声、声学定量技术和经食管超声等多种超声技术，与核素心室造影、结合较为系统地对右心功能进行了研究。

Firstly, based on the structure of the vibration characteristics, the response spectrum analysis method is used to study the seismic response of the structure with the two-dimensional and three-dimensional seismic input and vertical seismic analysis of the bridge structure are investigated.

首先，基于结构的自振特性，分别在二维和三维地震动输入下，采用反应谱分析方法，研究结构的地震响应特性，分析竖向地震力对桥梁结构反应的影响。

All the seven order ocular aberrations are measured with the aberrometer. The ocular aberrations are described with Zernike polynomials, two-dimensional and three-dimensional wave-front aberration maps.

该像差仪能测量出人眼的全部七阶像差，采用Zernike多项式、两维和三维波前像差图对人眼像差进行了描述，给出了计算各项波前像差的均方根的公式。

Objective:To explore the feasibility of laparoscopy in diagnosing and treating of abdominal diseases.

目的：探讨腹腔镜用以诊断腹部外科疾病及选择治疗方案的可行性。

The lifetime of nylon 1010 and nylon 1010/POSS composites decreased with increasing temperature.

热重-红外联用分析表明尼龙1010在氮气气氛下的降解产物主要为小分子的低聚物，POSS并不改变尼龙1010降解产物的组成。