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- Coal rock can be classified as humic and sapropelic coal. 在煤岩的分类中，有腐殖煤和腐泥煤之分。
- Coal rock is the muti-crevasse rock mass and its destruction forms are related with many factors. 煤岩是多裂隙岩体,在荷载作用下的破坏形式多种多样,而且煤岩的破坏与很多因素有关。
- The coal rock is a byproduct in the produce of coal.It not only engrosses a lot of farmlands and soil, but also pollutes the environment seriously. 摘要煤矸石是煤炭生产中的一种副产品，不仅占用大量农田和土地，而且严重污染环境。
- Research shows that maceral and the degree of metamorphism of coal rock are key factors that control the generating and storing capacity of coal rock. 煤岩组分和煤变质程度是影响煤层生储气能力的主控因素。
- The elastic wave parameters characteristics of Datong jurassic coal rock bed are analyzed.It will guide the channel wave seismic exploration in future. 对大同侏罗纪煤田的煤岩层弹性波特征参数进行分析,以便指导今后槽波地震探测工作。
- According to the analysis to the coaly facies,the coal lithotypes,the coal rock composition,the text discusses the influence factor of coal endogenic crack. 文中通过对煤相、煤岩类型、煤岩成分的分析,论述了煤中内生裂隙的影响因素。
- The results show that under these conditions the rock burst is closely related to the coal rock characteristic, mining depth, thickness of strong roof and periodic weighting of roof. 结果表明在此条件下开采时发生的冲击矿压与煤岩性质、采深、坚硬顶板厚度及顶板的周期来压有密切关系。
- Based upon microcal rock and reflectance of coal rock,the paper analyses the heatalteration of ripening index of organic matter.It has practical value for evaluating gas storageconidion of coal bed. 通过研究显微镜质组分、镜质组分反射率，分析了有机质成熟度的热演化趋势，对评价气源岩的储气条件具有实用价值。
- This paper analyzes the affection to stability of a high coal rock slope caused by the coal gob in a case,makes numeric analysis on this high slop,and appraisals that the slope is stable. 本文分析了某工程含煤岩质高边坡内存在煤洞采空区时对边坡的稳定性影响,并对此高边坡进行了数值分析,对其稳定性作出了一定的评价。
- Mining on conditions that ponding at the same layer of Yongquan mine area,the method and relative technical parameters of leaving the safety protective coal rock pillar are introduced. 介绍了阳泉矿区在有同层积水威胁情况下开采,留设安全保护煤岩柱的方法和有关技术参数。
- Triaxial creep tests on coal rocks are carried out by Step Method and the XTR01 electric-fluid servo compression machine. 使用XTR01型微机控制电液伺服试验机,采用梯级加载法,对煤岩进行了三轴蠕变试验。
- discernment of coal rock interface 煤岩界面识别
- We need to replenish our stocks of coal. 我们需要再次补充煤的储备。
- She piled on more coal before the fire go out. 在火熄灭之前她又加上些煤。
- I add the coal on the flame continuously. 我不断朝火里添加煤炭。
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- Rational support technology of soft rock gateway for cross mining of fully mechanized caving face in deep mine island 深井孤岛综放工作面跨采软岩巷道合理支护技术
- Prohibition was laid on the export of coal. 禁止煤炭输出。
- He put a shovel of coal on to the fire. 他往火炉里加了一铲煤。
- That coal mine is no longer worked. 那个煤矿已经不经营了。
