含夹矸煤层 meaning in Chinese

ribbed coal seam

The in - situ measurement and analysis of support resistance and top - coal movement in fully - mechanized top - coal caving face of a thick coal seam with dirt band had been carried out in some coal mine , the strata behavior and movement law of top - coal were revealed
摘要对某煤矿含夹矸煤层综放面的支架工作阻力和顶煤移动进行了现场观测和分析，揭示了其矿压显现和顶煤运移的规律。