A hybrid 3D spatial data model based on multi-DEMs and quasi tri-prism volume(QTPV) is proposed.
提出一种基于多层DEM与似三棱柱体元(QTPV)的混合三维数据模型。
Taking the geological exploration engineering as our research objects, we propose a QTPV (quasi tri-prism volume) model and make research about the model manipulation.
以地质体三维建模为目的 ,结合地质勘探工程数据的特点 ,对以似三棱柱体为体元的三维数据模型和基本算法进行了研究 ,并以内蒙古某矿区的实际钻孔资料进行了验证。
In this paper, A method of 3D modeling based on Quasi Tri-Prism Volume (QTPV) is proposed.
提出一种基于似三棱柱体元的三维数据模型 ,模型包含顶点、线段 (棱边、三角形边 )、三角形、侧面四边形、三棱柱体元 5个基本元素 ,和点对象、线对象、面对象、体对象、复杂对象、空间对象等 6个对象。
In ancient Babylonian mathematics,the expression of volume formula for the frustum of a square pyramid is much more complicated than its modern form.
在古巴比伦数学中,正四棱台体积公式的表现形式和现代形式相比十分复杂。
As an approximate method,with the trigonometric function,the simple pendulum dynamical equation is simplified,and the approximate formula for the period of simple pendulum movement is presented.
利用三角函数作为一种近似方法,对单摆的动力学方程进行了简化,给出了大角度条件下单摆运动的周期的近似公式。
We attempt an analysis of the condition and modify the approximate formula.
本文从一个二项分布的实例谈起,论证了在使用二项分布近似公式时,仅注意到n的绝对大小是不够的。
This paper presents an approximate formula to determine FA coefficients .
本文给出一个近似公式,利用它可很方便地求出有限分析系数,误差在0。
The Walkthrough Technology of 3D Stratum Based on similar triangular prism
基于似三棱柱体体元的三维地质体漫游技术
Of, relating to, resembling, or being a prism.
棱柱的棱柱的、有关棱柱的、与棱柱相似的或由棱柱构成的
Research on 3D Geologic Modeling Based on STP;
基于似三棱柱的三维地学空间构模技术研究
Three such arrangements come to mind: a planar hexagon, similar to the benzene ring, and two solid polyhedra, the trigonal prism and the octahedron.
故而,有三种排列方式：平面六边形,类似苯环；两个立体多面体：三棱柱和八面体,
an oblique a regular, a right, a triangular ] prism
斜正、直、三角]棱柱
an oblique [ a regular, a right, a triangular ] prism
斜[正、直、三角]棱柱
Study of 3D GEO-Spatial Modeling and Visualization Based on TRI-Prism Volume;
基于三棱柱的三维地质体建模与可视化研究
The Research of Geological Body 3D Visualization Based on Generalized Tri-Prism;
基于广义三棱柱的地质体三维可视化方法研究
a prism whose bases are triangles.
底面是三角形的棱柱。
longitudinal coefficient
船体)棱形系数船体棱)棱形系数圆柱形系数
The trigonal prism yields three isomers also, but there are only two octahedral arrangements for this formulation.
三棱柱也有三个异构体,而对于这个分子式,仅有两种八面体排布。
Research on Establishment of Three Dimensional Geologic Body Model and Visual System Based on ATP;
基于类三棱柱的三维地质体建模与可视化系统研究
A solid figure whose bases or ends have the same size and shape and are parallel to one another, and each of whose sides is a parallelogram.
棱柱（体），角柱（体）多面固体，上下两底面大
a prism whose bases are parallelograms.
底面都是平行四面体的棱柱。
3D numerical simulation of free surface flow on tri-prism grids
三棱柱形网格下自由表面流的三维数值模拟
The condition of uniaxial stress is closely approximated in prismatic bars subjected to pure axial tensile.
单轴的应力状态跟棱柱杆承受单纯轴向拉伸十分近似。
She would become quite irritated if people complicated the issue with grey.
谁要是似是而非，模棱两可，她就会火冒三丈。
Hot-Stress Analysis of Concrete Prism Confined by Carbon Fiber Sheets Based on ANSYS
基于ANSYS的碳纤维约束混凝土棱柱体热应力分析
