facetted peneplation

Based on the intersection condition of discontinuities and window,the estimator of discontinuities mean trace length is deduced.

从不连续面与窗口交切的充要条件出发，推导了窗口法不连续面测量的平均迹长估算公式，实例分析表明用该方法估算的平均迹长与实测平均迹长吻合较

Research on shear deformation localization in high-strength steel during orthogonal cutting;

高强度钢正交切削过程中剪切变形局部化研究

Milling tool normal rake angle optimization based on orthogonal cutting simulation;

基于正交切削模拟的直齿圆柱铣刀前角优化

This paper presents the experiences in programming about the editing of graphics andthe solving results of geometric intersection, such as the reflection rotation and translation ofgraphics, the most of ten used nine solving results about the geometric intersection during in-teractive drawing, It is also to explain the principle and methods with C routine in examples.

本文进一步介绍图形编辑和几何交切方面的程序设计的经验，如图形的映射、平移和旋转，交互绘图时常用到的九种几何交切的有关内容。

The intersectional and tangential calculations can be processed in entity groups automatically.

只输入图形的已知信息，交切计算自动分组进行。

The intersection method is one of the basic approaches for locating earthquakes and is not only robust but also efficient.

交切法是最基本的地震定位方法之一,该定位方法具有稳定性强、速度快的优点。