By comparing the content of mercury , mineral and ash in each density fractions, the potential correlation between mercury and Chaoite in Alberta sub-bituminous coal was found.

分析了该煤样中汞、矿物及其灰分的相关性，提出了汞赋存于阿尔伯塔次烟煤中一种特殊矿物-赵击石中的可能性。

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Based on test the influence of oxygen content and various bituminous proportion in nitrogen transportation on burning course and conveyance performance of pulverized coal is analyzed.

根据氮气输送对煤粉燃烧过程和输送性能的试验，分析了氧含量、烟煤比例变化对煤粉燃烧过程和输送性能的影响。

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Vontent of bituminous mixtures is recommended as a main index of the stability at high temperature and criterion of the void content is discussed and analysed.

并提出以空隙率作为热稳生的主要指标，对空隙率的标准进行了探讨和分析。

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