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- roof control by caving 垮落控顶
- BDMX coal-mining method incluedes wall layout,roof control by ladder prop and bolt,and descending coal-mining. 阐述了BDMX采煤法,即“壁式布置,刀柱加锚固式管理顶板,下行开采”采煤法在新庄煤矿的应用。
- BDMX coal-mining method incluedes wall layout,roof control by ladder prop and bolt,and descending coal-mining.Its application in Xinzhuang mine is introduced. 阐述了BDMX采煤法,即“壁式布置,刀柱加锚固式管理顶板,下行开采”采煤法在新庄煤矿的应用。
- roof control by wall-shape pillar 煤柱支撑顶板法
- He obtain control by buy the founder's shareholding. 他因买下创始人的股份而得到控股权。
- Meanwhile they were preparing to seize control by violence. 与此同时，他们还做准备以暴力夺取控制权。
- Based on similarity theory, immediate roof with many cracks caving in longwall face are studied and controlled by modelling experiment. 本文根据相似理论,对多裂隙直接顶的破坏问题进行了模拟实验及控制研究。
- Effects of Roof Control by Means of Hydraulic Supports Under Various Conditions 不同条件下液压支架控制顶板的效果
- Should industry be controlled by the state? 工业应该由国家控制吗？
- The key point of Grand pressure law on working face of seam top coal caving method,the method of dealing with them,firstly caving and end caving of working face roof control are discussed. 论述了中厚煤层综采放顶煤工作面矿压显现规律和顶板管理的特点,指出了综放工作面顶板管理的方法,以及工作面初采、收作时顶板管理的要点。
- The paper introduces roof control methods of goaf of large mining height fully-mechanized face by artificial forced caving with deep-hole blasting at seam 14 of Silaogou Mine and analyzes the effect. 介绍大同煤矿集团公司四老沟矿14%23层404盘区8402大采高综采工作面人工强制深孔爆破处理采空区顶板的技术,并对其效果进行了分析。
- The pot trade is controlled by the underworld. 毒品生意为黑社会所控制。
- Grain imports are controlled by strict quotas. 谷物进口量受最高限额的严格控制。
- Flexible start control by handle or panel. 灵活手柄或主板启动键。
- Continuous control by the space bar fish fluctuate. 连续按空格键控制鱼上下浮动。
- He obtain control by buy the family shareholding. 他用购买家庭所持股份的方法获得控制权。
- Roof Control Method of Blasting Caving Coal 炮采放顶煤顶板控制方法
- Secondly control by way of USS Protocol. 二是通过串行总线应用USS协议进行控制。
- Hormone secretion is controlled by the pituitary gland. 荷尔蒙的分泌是由垂体控制的。
- Smallpox have is bring under control by the use of vaccine. 通过种牛痘天花已得到控制。
