The book provides a simulation project named NOMAS for students to learn systems analysis and design through practical work.

本书通过一个名为NOMAS的模拟项目，利用实践方法学习系统分析和设计。

This paper is aimed at presenting the authors' study and analysis on the economic system for a virtuous circulation mode with teletube glass scraps in China by using the method of system analysis.

近年来,我国CRT显像业迅速发展,但显像所需的大量优质矿石和化工原料的开采和合成过程却破坏了自然生态环境,还成环境污染。