The discrete ordinate approximation method of three dimensional radiative transfer equation in absorbing scattering medium is expounded.
阐述了含吸收散射性介质三维空腔内辐射传递方程的离散坐标解法。
According to the complex geological phenomena in rock and soil medium and the features of strata, a three dimensional strata model is established.
根据岩土介质中复杂的地质现象及其地层的层状展铺特性，建立了三维地层模型。
A line drawing is an important medium that human exchanges information of three-dimensional scenes with computer.
立体线框图是人与计算机交换三维景物信息的一种重要媒介。
Methods: The fetal faces of 1028 pregnant women in medium and late pregnancies were imaged by three-dimensional ultrasound and compared with after feticide or birth.
方法应用三维超声对1028例中、晚孕妇的胎儿面部结构行三维超声成像，并与引产后对照。
BACKGROUND: Two-dimensional data colourings are an effective medium by which to represent three-dimensional data in two dimensions.
背景：二维数据着色是一个有效的媒介，通过它在二维中表征三维数据。
Based on non-contact three-dimensional measuring principle of computer vision and light refraction principle, a new theoretical method of visual measurement in multi-medium was proposed.
基于计算机视觉的无接触三维测量原理和光的折射定律，提出一种多介质下空间目标视觉测量方法。
Based on non-contact three-dimensional measuring principle of computer vision and light refraction principle, a new theoretical method of visual measurement in multi-medium was proposed.
基于计算机视觉的无接触三维测量原理和光的折射定律，提出一种多介质下空间目标视觉测量方法。
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