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- blasting coal face with sublevel caving 炮采放顶煤工作面
- fully mechanized coal face with sublevel caving 综放工作面
- The Technology of Roof Bolting with Bar and Wire Mesh in Open-off Cut in Coal Face with Sublevel Caving 综放工作面开切巷锚梁网支护技术研究
- Field Survey Study on Surface Subsidence and Deformation Law of Longer Fully-Mechanized Coal Face with Sublevel Caving 超长综放面开采地表移动变形规律的实测研究
- coal face with sublevel caving 综放工作面
- Using hydraulic supports in heavy grade longwall face with sublevel caving,anti-topple and antiskid are the key factors. 在大倾角倾斜煤层进行综放开采,支架的防倒、防滑成为决定放顶煤开采成功与否的关键。
- Technology study of coal face equipment forming a complete set of transformed type supports with sublevel caving 改造型放顶煤支架工作面设备配套技术研究
- Comprehensive Control Measures for Spontaneous Combustion in a Coal Face with Simple Sublevel Caving Mining 简放工作面自然发火综合防治对策
- Drawing test in fully mechanized working face with sublevel caving after mining the up-seam of contiguous seams 近距离煤层顶层预采综采放顶煤试验
- fully mechanized coal face with caving of roof coal 综放工作面
- fully-mechanized mining with sublevel caving 综采放顶煤
- fully mechanized mining with sublevel caving 综放工作面
- I dry my hands and face with the towel. 我用毛巾擦干了双手和面部。
- Construction Technology on Rear Exit in Blast-winning with Sublevel Caving Face 炮采工作面留后出口的施工技术
- She covered her face with her hands. 她双手掩面。
- Her face with radiance absorbed me. 她那容光焕发的脸庞吸引了我。
- The Status and Its'Developing Trend of Mining Thick Coal Seam with Sublevel Caving Method in China 我国厚煤层放顶煤开采技术的现状及发展方向
- He shaved his face with a razor. 他用剃刀刮脸。
- As a result,the new scheme of sublevel caving with footwall drifts,is raised. 为此,提出自放顶、设回收进路的无底柱分段崩落法新方案,实施后成效显著。
- Mary covered her face with her hands. 玛丽用双手捂住脸。