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- New Mining techniques and equipments are utilized to raise the production and efficiency with longwall mining in thick seam. 为了提高中厚煤层长壁综采的高产高效,采用了新的开采技术工艺和设备,达到了预想的目的。
- An initial mining depth in the thick seam or a depth of a full seam cut will cause an obvious increasing in crack height and also in horseshoe distribution. 增大重复开采厚度以提高采煤工效和矿井经济效益;
- Ways and measures of medium thick seam working face crossing fault 中厚煤层工作面过断层的方法与措施
- Shotholes are prepared by powerful drills. The drills may be mounted on mobile platforms, where an unusually thick seam is being worked in two benches; the bulldozer clearing the upper one gives some idea of the height. 炮眼预先用功率强大的凿岩机钻好。凿岩机安装在可移动工作平台上--较厚的矿层都分为两个台阶开采，推土机清理上层台阶形成一定的高度。
- Based on the recent years mining practice,study the technical management problems in thick seam mining,accumulate some actual experiences in roof management in thick seam,adopt the efficient technical measures and achieve the good result. 通过多年的开采实践 ,作者着重研究了厚煤层开采的技术管理问题 ,在厚煤层开采顶板管理方面积累了一些实际经验 ,采取了行之有效的技术措施 ,收到了较好的效果
- Pillar-support method adopted for thick seam mining 刀柱采煤法在厚煤层开采中的应用
- Test of low slicing with coal roof in thick seam 忻州窑矿厚煤煤层下分层留顶煤开采试验分析
- thin and thick seam with steep dip 急倾斜较薄厚煤层
- spontaneous ignition special thick seam 易发火特厚煤层
- Approach on changing product structure with medium thickness seam dealing system 改变中煤处理系统产品结构的探讨
- This machine utilizes bobbin winder and big rotary shuttle, especially available for sewing thick seaming work piece. 采用全回转式的大釜与大梭仔，适合粗线之车缝。
- English is not the usual medium of instruction in our school. 英语不是我校通常使用的教学语言。
- Blasting coal mining method with deep bore holes applied to deep inclined thin seam and medium thick seam 深孔爆破采煤法在急倾斜薄及中厚煤层中的应用
- An ASCII control character, end of medium. 一种ASCII码控制字符，媒体结束符。
- The beam has a thickness of 3 inches. 这根梁厚3英寸。
- This cloth is of medium quality. 这种布质量平平。
- Application of Cable Anchor Support in Gate of Thick Seam 锚索支护在厚煤层顺槽中的应用
- He prefers a happy medium in life. 他在生活中甘居中游。
- Application of cable anchor in roadway of thick seam 锚索在厚煤层顺槽支护中的应用
- A fish in water is in its natural medium. 鱼在水里就是在自然环境中。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
