This article introduced the main points, analysis methods of circulating analysis of matter and energy and its application in economy.
本文介绍了物质与能量流动分析的主要观点、分析方法及其在经济领域中的应用情况。
The analysis provides guidance and direction for application, of controlled circulating ventilation in underground mines, especially those old mines.
为可控循环通风的应用，特别是对衰老矿井解决矿井通风问题提供了清晰的思路和方向。
The principle of statistical pattern recognition and its application to the treatment of circulating cooling water is introduced in brief.
简述了统计模式识别方法的原理及其在循环冷却水处理中的应用。
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