gently inclined coal seam [矿业] 缓倾斜煤层
sharp inclined coal seam 急倾斜煤层
steeply inclined coal seam 急倾斜煤层
deeply inclined coal seam 急倾斜煤层 ; 建筑物下
big inclined coal seam 大倾角煤层
steep-inclined coal seam 急倾斜煤层
sharply inclined coal seam 急倾斜
It is understood that more than 45 degree Angle in inclined coal seam is called.
据了解，倾角在45度以上的煤层称为急倾斜煤层。
The paper discusses the application and the effects of the coal mining method with retreating-longwall flexible shield support in steeply-inclined coal seam.
叙述了走向长壁后退式柔性掩护支架采煤法在急斜煤层中的应用及效果。
Base on the site observation and experimental research, the paper studied the top coal structure for the top coal caving mining in steep inclined seam sections.
在现场观测及实验研究基础上，对急倾斜水平分段放顶煤开采过程中顶煤体结构进行了研究。
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