加长孤岛综放工作面长度，护巷大煤柱和小煤柱的支承压力均减小，可以减小护巷煤柱宽度。
Lengthening the width of isolated fully mechanized top coal caving face would reduce the abutment pressures for both wide and small coal pillars, and the coal pillar width could be reduced.
通过利用风口测量枪进行的微波反射测量方法讨论了大煤粉喷吹量条件下高炉风口回旋区的形成。
The blast furnace raceway formation under the intensive coal injection by measurement of micro wave reflection gunned through a tuyere is discussed.
证券日报消息，据中国神华和中煤能源近日先后发布的9月份生产数据显示，两大煤企9月份的煤炭销量均有所增加。
SECURITIES DAILY news, according to the September production data recently released from SHENHUA GROUP and ChinaCoal, the coal sales of the two major coal enterprises in September both increased.
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