...科学技术论文 关键词： 煤自燃；松散煤体；比热容；温度；煤化程度；挥发分 [gap=1160]keywords: coal self-heating; loose coal; heat capacity; temperature; coalification degree; volatile ..
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...、英文版） 关键字: 低温氧化；松散煤；程序升温；粒度；复合作用[gap=1439]Key words: low-temperature oxidation; loose coal; temperature-programmed heating; coal granularity; combined effect..
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loose coal seam 松散煤层
loose coal bulk 松散煤体
loose coal equipment 松煤装置
Loose coal self-igniting 松散煤体自燃
particle size of loose coal 松散煤体粒度
loose soft coal seam 松散软煤层
coal loose technique 煤体松动
Moreover, there are some other influencing factors such as: thick loose bed, surface mining degree, impel speed of working face, coal mining and roof manage methods, mining procedure and time.
此外，厚松散层、地表采动程度、工作面推进速度、采煤方法与顶板管理方法、开采程序及时间因素等对采场覆岩空间结构均有一定影响。
Methods to define the laneways loose zone of thick coal seam with enriched gas and spontaneous combustion is studied in the article and define the rational the length of sealed borehole.
研究了铜川矿务局下石节煤矿高瓦斯油气共生易自燃厚煤层巷道松动圈的范围，确定合理封孔长度。
To increase lump coal ratio in stopes, a scheme is put forward for coal falling by loose pre-shearing millisecond blasting, and hole arrangement parameters and blasting parameters are adjusted.
为提高炮采面块煤率 ，提出了松动预裂微差爆破的落煤方案 ，并对布孔参数和爆破参数进行了调整。
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