介绍了国内外长壁综采工作面的尺寸、设备、回采巷道布置及工作面单产的现状及发展趋势。
The paper introduced the size, equipment, gateway arrangement and production of the fully mechanized longwall coal mining faces at home and abroad.
通过对云驾岭矿较薄厚煤层综放的开采实践，提出了开采中存在的问题，并对如何提高综放工作面单产进行了探讨。
By trial of fully mechanized caving in relatively thinner thick coal seam in Y. J. L. coal Mine, the problems in mining are raised and the ways to increase its unit production are discussed.
通过对云驾岭矿较薄厚煤层综放的开采实践，提出了开采中存在的问题，并对如何提高综放工作面单产进行了探讨。
By trial of fully mechanized caving in relatively thinner thick coal seam in Y. J. L. coal Mine, the problems in mining are raised and the ways to increase its unit production are discussed.
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