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- coal mine hydraulic prop 单体支柱
- The paper introduces a kind of method to quick restore the single hydraulic prop cylinder by non-thinning wall way. The method has achieved good economic results in coal mines. 介绍一种修复单体液压支柱油缸的方法;这是通过不减壁方式达到快速修复的方法;在煤矿中已取得了很好的经济效果.
- The present state,application and development of coal mine hydraulic drill rig are de-scribed in this paper. 介绍了煤矿用液压钻车现状,使用情况及发展。
- The article summarize by the numbers construction practice and mine of high effciency on safety in the single hydraulic prop cannon coal face and quality in Huainan mine area. 文章系统地总结了淮南矿区单体液压支柱炮采面安全高效开采的基本经验和具体做法,提出了淮南矿区单体液压支柱炮采面今后的发展方向。
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- That coal mine is no longer worked. 那个煤矿已经不经营了。
- Design and Application of LPG Air Heating Furnace for Preheating the Body of Coal Mine Hydraulic Support 煤矿液压支架预热焊用燃气热风炉设计及应用
- Using individual hydraulic prop in thin coal seam face is better than the others in the aspect of support strength,premary supporting force,shrink amount and safety. 在薄煤层工作面中使用单体液压支柱,在支护强度、初撑力、可缩量、安全保障及操作人员安全上,都优于其它单体支护材料。
- Study on mining hydraulic fill condition of No.3 Coal seam in Yang cun Coal Mine 杨村煤矿3煤开采充水条件研究
- They underwrote the coal mine's bonds. 他们同意买下该煤矿的未认购的股票。
- The hydraulic coal driller overcomes the weakness of the coal electric driller,it depends on the motive sources of the emulsification liquid pump station of hydraulic prop and turns the hydr... 液压煤钻克服了煤电钻的缺点,它以液压支柱的乳化液泵站为动力源,将液压能以输出转矩的方式转化为机械能,实施钻孔,有小部分乳化液经空心钻杆到钻头,实现湿式打眼,降低粉尘浓度,改善工作环境。
- There is a coal mine near my home town. 我的家乡附近有一个煤矿。
- This paper deals with the finite element model of DWX hydraulic prop in aid of Pro/MECHANICA. 本文用Pro/MECHANICA有限元分析软件,建立了柱塞悬浮式液压支柱的有限元模型。
- On the basis of the theory of probability, this paper analyzes stability for the hydraulic prop. 用概率理论分析了单体液压支柱的稳定性问题。
- We decided to open out a coal mine near the city. 我们决定在城市附近开发一煤矿。
- The technical principle and structure characteristics of suspended column-piston hydraulic prop were introduced. 摘要介绍了柱塞悬浮式液压支柱的技术原理和结构特点;
- The coal mine was closed down due to exhaustion. 这煤矿因矿源枯竭而关闭了。
- Drawing top-coal affects the stability of support sys tern, especially the stability of the end row hydraulic prop. 放煤对支护系统稳定性的影响主要体现在末排支柱稳定性的变化。
- They are developing a new coal mine. 他们在开发新煤矿。
- They sold the coal mine at a profit. 他们把煤矿卖掉赚了钱。