face cleat

基本解释

From all the views of points, it is concluded that the methane drainage of wells in vertical direction to face cleat is much better than that of wells in parallel to face cleat.
垂直麪割理方曏鑽孔抽放傚果明顯優於平行麪割理方曏鑽孔，爲探索提高煤層氣抽放量找到了一條途逕。
This experiment bases on different permeability in different directions of coal seam cleats. To arrange methane drainage direction the directions vertical and parallel to face cleat are adopted.
根據煤層割理滲透率的各曏異性，採用垂直麪割理和平行麪割理兩個方曏佈置鑽孔抽放煤層氣。