通过砷酸生产中含硫尾气治理实例，介绍治理系统的预处理、 脱硫及废水封闭循环。

By means of an example of controlling the tail gas from the production of arsenic acid, this paper introduced the pretreatment, desulfurization and wastewater closed cycle of the control system.

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介绍了印刷线路板生产废水治理中的计算机控制系统，重点介绍了P LC在该系统中的作用。

This paper introduces the computer control system in waste water treatment in printing circuit board production and emphasizes the function of PLC in it.

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他把知识工作者看成一个系统，并指出知识工作者与知识工作者生产率的出现对公司治理的意义。

He sees knowledge worker as a system and shows what the emergence of the knowledge worker and of knowledge-worker productivity means for the governance of the corporation.

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