seam top 中文意思是什麼

seam top 解釋
煤層的頂板
  • 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...
  • top : n （opp bottom foot）1 頂，頂部，頂端。2 頭，頭頂；尖端；樹梢，樹頂；（事物的）上層部分。3 最高位...
  1. The in - situ measurement and analysis of support resistance and top - coal movement in fully - mechanized top - coal caving face of a thick coal seam with dirt band had been carried out in some coal mine, the strata behavior and movement law of top - coal were revealed

    摘要對某煤礦含夾矸煤層綜放面的支架工作阻力和頂煤移動進行了現場觀測和分析，揭示了其礦壓顯現和頂煤運移的規律。
  2. Analysis on danger of pressure bump when fully mechanized sublevel caving mining face passed through terminal mining line of top slicing seam

    綜放面過上分層終采線沖擊地壓危險性分析
  3. 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。
  4. Fully mechanized high top coal caving mining technology in hard coal seam of honghui no. 1 mine

    紅會一礦堅硬煤層大放高綜采放頂煤開采技術
  5. In order to optimize the parameters of running top coal under different coal and gangue fragmental size, on the basis of measuring and analyzing the distribution character of top - coal fragmental size, running top coal was studied for the coal seam with dead - unconsolidated thin sandstone roof by loose medium model experiment

    摘要為了優化不同煤矸塊度條件下的放煤工藝參數，在實測分析頂煤破斷塊度分佈特點的基礎上，採用散體模型試驗的方法對煤層頂板為極鬆散細砂巖條件下的放煤工藝進行了研究。
  6. Fully mechanized longwall top coal caving mining with light weight hydraulic powered supports applied to no. 30 seam mining in dongrong no. 3 mine

    輕放工藝在東榮三礦30號煤層開采中的應用
  7. Bolt support technique for large section with top - coal caving mining in three - soft seam roadway

    綜放大斷面三軟煤巷錨桿支護技術
  8. Inquiring into gas emission law from top slice during slice mining of an extra - thick coal seam

    特厚煤層分層開采頂分層瓦斯湧出規律探討
  9. Technique of fully mechanized top - coal caving mining in high tenacity seam

    高韌性煤層綜采放頂煤技術探討
  10. Reasons analysis of different working resistances of top coal caving power supports in the same seam

    綜放開采支架阻力不唯一性原因分析
  11. Ground pressure behavior of light top - coal caving method in extremely thick and soft seam

    極軟特厚煤層輕放開采礦壓顯現規律
  12. Feasibility studies on longwall top - coal caving mining in no. 2 1 2 seam of ruqigou coal mine

    急傾斜特厚煤層綜放開采實踐
  13. The use of different mining methods may cause some changes in gas emission, gas distribution rule and gas migration when the long - wall top coal caving ( ltcc ) is used for the high gas content coal seam, leading to a hidden danger of safety production

    摘要在綜采放頂煤開采高瓦斯煤層時，由於採用的開采方法不同，會帶來瓦斯湧出與分佈及運移規律的一系列變化，給煤礦的安全生產造成極大的事故隱患，因此必須對此進行深入的研究。
  14. Fully mechanized top coal caving mining technology under unstable thick seam with soft roof, soft coal and soft floor

    三軟不穩定厚煤層條件下綜采放頂煤技術
  15. Top coal caving technology with - type beam used in three soft seam

    型梁輔助假頂放頂煤技術在三軟煤層的應用
  16. Seal your box with heavy - duty tape preferably reinforced by applying three strips to both the top and bottom of the box, so that the middle seam and the two edge seams are sealed

    使用耐用或強化的膠帶封箱，在頂層及底層使用三條膠帶，使中間及邊緣的接合處能得以封住。
  17. Seal your box with heavy - duty tape ( preferably reinforced ) by applying three strips to both the top and bottom of the box, so that the middle seam and the two edge seams are sealed

    在包裝箱的頂部和底部貼上三條膠帶，使用重負載膠帶（最好是加強型）密封包裝箱，這樣中間的接縫和兩條邊沿接縫就已經密封了。
  18. Experiences of fully mechanized longwall top caving mining in thick seam

    厚煤層綜采放頂煤開采經驗
  19. Do not place the label over a seam or closure or on top of sealing tape

    請勿將標簽放于接合或關閉處或封條上。
  20. Relationship of support and surrounding rock in three soft seam extracted by top - coal caving method

    三軟煤層普放面礦壓規律及合理支護研究
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