face cleat

基本解釋

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.
垂直面割理方向鉆孔抽放效果明顯優(yōu)于平行面割理方向鉆孔，為探索提高煤層氣抽放量找到了一條途徑。
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(jù)煤層割理滲透率的各向異性，采用垂直面割理和平行面割理兩個(gè)方向布置鉆孔抽放煤層氣。