The paper introduces the reflectivity profile's principle of coal petrography analysis and its application. Through analysis, management of single coal and quality of matching coal have been improved.
介绍了煤岩分析镜质组反射率分布图的原理及在生产中的应用情况，通过煤岩分析有效促进了单种煤管理和配合煤质量的改善。
The air quality analysis in coal mines is a new idea. it is a new scientific method for understanding the environment in mine.
矿井空气品质是矿井通风理论的新思路，是人们认识矿井空气环境的一种科学方法。
Using the exergy analysis method, the conception of energy quality character was presented, which indicated the discretion of electricity, gas, coal, steam and hot water, cooling or heating load etc.
基于热力学第二定律的分析方法，按照能质系数的概念确定了电、天然气、煤、蒸汽、热水等各种形式的建筑用能及建筑物耗冷量、耗热量的能源品位高低；
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