短語詞組短語inclined coal seam 傾斜煤層steeply inclined coal seam 急傾斜煤層deeply inclined coal seam 急傾斜煤層;建築物下big inclined coal seam 大傾角煤層inclined thick seam 急傾斜厚煤層steep inclined thin seam 急傾斜薄煤層inclined thin seam 傾斜薄煤層deep inclined thick seam 急傾斜特厚煤層sharp inclined coal seam 急傾斜煤層 返回 inclined seam