英语语法分析

The use of computer for plotting relative isogram is a method that imitates manual operation.

相对等值图的计算机绘制，是模拟手工方法进行的。

And scanning line algorithm is used for the first time in displaying the plane and space isogram and nephogram.

首次将扫描线算法用于平面和空间等值线图和彩色云图的显示。

This paper describes in detail the principles, steps and methods of drawing isogram of wave diffraction by computer.

本文详细介绍了计算机绘制波浪绕射图的步骤、要点和方法。