Learning plane geometry well is the foundation of learning solid geometry well.
学好平面几何是学好立体几何的基础。
When solving a solid geometry problem, if we transform the problem into space vector, we shall get twice the result with half the effort.
在解答立体几何问题时，若能把立体几何问题转化为空间向量的运算，解答起来会收到事半功倍的效果。
Then the solid geometry model is entered into ANSYS to do the pre-treatment of FEA. It is disassembled by ten-noded tetrahedron elements.
将几何模型导入到有限元分析系统ANSYS做有限元分析的前处理，构建了以十节点四面体单元为基本单元的有限元计算模型。
Straight line and plane are two basic concepts of geometry; they are also two special difficulties in the teaching of solid geometry in middle schools.
直线与平面是中学立体几何基础理论部分，也是教学中的重点与难点。
Based on the theory of solid geometry, a survey method to measure the bucket foundation installation error and ensure the installation precision is presented.
提出了根据空间立体几何原理对桶形基础平台进行桶基安装误差测量并保证安装精度的方法。
Forward kinematics model is set up based on solid geometry by a rapid calculate method.
正向运动学模型采用了一种基于空间几何法的快速计算法。
A basic understanding of mathematics, solid geometry, and color theory may be prerequisite to beginning such a program.
数学的基本知识，坚实的几何和色彩学知识是这门课程的先决条件。
The trace occurrence is substantially the occurrence of intersection line of two oblique planes in space, which belongs to the mathematics field of solid geometry.
迹线的产状实质上是空间二斜面相交线的产状，属于立体几何学等数学范畴。
The reserve calculation methods used in the production units at present are mainly the traditional ones based on solid geometry, namely cross-section method or geological block method.
目前，在实际生产单位所采用的储量计算方法主要是基于立体几何的传统方法，即剖面法或地质块段法。
CSG (Constructive solid Geometry) is an important solid modeling technique.
是实体造型中一种重要表示方法。
On the basis of Feature Modeling and 3d Solid Geometry Modeling, with the idea of Object-Oriented Product Design, a 3d Parametric Feature Modeling Method is applied to develop manifold.
采用特征对象化的设计思想，在特征造型和3维实体几何造型的基础上，研究液压集成块的3维参数化设计方法。
On the basis of Feature Modeling and 3d Solid Geometry Modeling, with the idea of Object-Oriented Product Design, a 3d Parametric Feature Modeling Method is applied to develop manifold.
采用特征对象化的设计思想，在特征造型和3维实体几何造型的基础上，研究液压集成块的3维参数化设计方法。
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