急倾斜厚煤层
基于1个网页-相关网页
steep-inclined super-thick coal seam 急倾斜持厚煤层
steep-inclined thick coal seam
急斜厚煤层
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The feasibility of the protective coal pillar mining in the artificial inclined steep drift in the thick (ultra thick) coal seam of a large slope is discussed.
论证了急倾斜厚(特厚)煤层伪斜上山保护煤柱回收的可行性。
youdao
应用推荐
模块上移
模块下移
不移动