seam roof 中文意思是什麼

seam roof 解釋
頂蓋巖
  • seam : n 1 縫；線縫。2 介面；接縫；接合處；接合線。3 裂縫。4 （臉上的）皺紋。5 傷痕。6 【造船】（船板間...
  • roof : n 1 屋頂，房屋；家屋。2 （放行李的）車頂；笠形罩。3 上頜。4 最高部，頂部；【礦物】頂板。5 【航空...
  1. Contour map of seam roof

    礦層頂板等高線圖
  2. Methane drainage experimental research for the stress - relief roof stratum of working face of high gas coal seam

    高瓦斯綜采面頂板覆巖卸壓抽放瓦斯試驗研究
  3. Bolt - mesh - beam support technology used in instable roof seam roadway

    破碎不穩定頂板煤巷錨網梁支護技術
  4. Practices on fully mechanized coal mining in deep inclined seam with hard roof, soft coal and soft floor

    軟底大傾角煤層綜采開采實踐
  5. Analysis on strata pressure of fully mechanized longwall coal mining face in soft roof, soft coal and soft floor seam

    三軟煤層綜采長壁工作面采場礦壓分析
  6. Application of multifunction plank with trapezium - shed on supporting in seam with soft roof, floor and coal

    梯形棚多功能墊板在三軟煤巷支護中的應用
  7. Discussion on theory of compound soft rock roof, soft seam along goaf drivage roadway

    松軟煤層沿空掘巷理論探討
  8. Through analyzing on the different phenomena of gas pouring amount at different coal seam, different area at the same seam, different position at the same area, the coal thicknss, inclined angle, structure, roof and floor rock character and water content in coal est. geology factor are regarded as the main reason of effecting the gas pouring amount

    通過對不同煤層，同一煤層不同區域，同一區域不同地點瓦斯湧出量有很大差異現象的分析，認為煤層厚度、傾角、構造、頂底板巖性、煤中水分等地質因素是影響瓦斯湧出大小的主要原因。
  9. Talking about spreading combined mining roof coal technology at gentle inclined coal seam

    在緩傾斜煤層中推廣綜采放頂煤技術淺析
  10. Head face roof control technology in very complex structure seam working face

    極復雜構造煤層工作面端面頂板控制技術
  11. A roof - coal - discharging test mining by predetonation in super high seam

    堅硬頂板特厚煤層預爆破放頂採煤試驗
  12. Base test method for purlins supporting a standing seam roof system

    固定接縫屋頂系統承重檁條的基本試驗方法
  13. The test results show that the drawing interval of 1. 5 m is helpful for controlling dead - unconsolidated thin sandstone of coal seam roof and reduce sand ratio of drawn top - coal

    試驗結果表明，放煤步距採用三采一放有利於控制頂板極鬆散細砂巖，降低放出頂煤的含砂率。
  14. Evaluations method for coal seam - roof stability in geological survey stage

    煤田地質勘探階段煤層頂板穩定性評價方法
  15. Test and research on bolt and wire mesh support for mine roadway with broken seam roof

    破碎煤頂巷道錨網支護試驗研究
  16. Study on coal seam roof gas drainage from the strike of annular fracture areas by the long drill method

    開採煤層頂板環形裂隙圈內走向長鉆孔法抽放瓦斯研究
  17. Study and practice on supporting technique in coal seam roof

    煤層頂板支護技術的研究與實踐
  18. Application of anchorage cable supporting technology in roadway with coal seam roof

    錨桿錨索聯合支護在大斷面巷道中的應用
  19. Application of fuzzy synthesis evaluation to coal seam roof stability

    模糊綜合評判在煤層頂板穩定性評價中的應用
  20. To optimization design taked gas out system and technique for close to seam roof

    鄰近煤層頂板瓦斯抽放系統工藝的優化設計
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