high seam 中文意思是什麼

high seam 解釋
厚層
  • high : adj 1 高的〈指物，形容人的身高用 tall〉；高處的；高地的。2 高級的，高等的，高位的，重要的。3 高尚...
  • 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...
  1. Mining high gas coal seam with enclosed mining method

    封閉式採煤法開采高瓦斯煤層
  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. Supporting technology with meshing and bolting in high gas, inflammable, soft - broken coal seam

    高瓦斯易燃松軟破碎煤層錨網支護技術
  4. Of his career - high 114 pitches, wang said he threw 12 changeups and at least 40 sliders. he also worked in an occasional four - seam fastball that stayed high in the strike zone

    王總計用了114個球，包含12個變速球和至少40個滑球，並且也投了一些4縫線速球，好球率依舊維持的相當好。
  5. Availability of the production system of the high coal face fully mechanized mining in the two - hard seam

    條件大采高綜采工作面生產系統的有效度
  6. Comprehensive preventive and cure breeding fire technology in high seam

    厚煤層自燃發火綜合防治技術
  7. 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
  8. Discussion on the feasibility of comprehension machine for lower high seam

    西山部分煤田煤層綜放開採的可行性探討
  9. The high seam drill 2000 is stainless steel construction and the cylinder rods of the 1st inner legs of the stinger and drill leg are stainless steel

    此厚煤層鉆2000為不銹鋼結構，且刺和鉆支架的一級內支架所屬的活塞桿也是不銹鋼的。
  10. High frequency induction heating equipment used in on - line tube seam annealing unit

    焊管用單管高頻感應加熱設備
  11. The construction methods and caving protection measures for punching high thick and loosen soft coal seam in luling coal mine no. 2 dark tilt well in huaibei coal mine area are introducded. they include small section enlarged after the heading caving, high negative pressure and multi - raw drilling holes and strenous drawing - off, concentrated cross drill holes, cutting while drawing - off and putting the metal frame away

    介紹了淮北礦區蘆嶺煤礦2主暗斜井採用小斷面導硐后刷大、高負壓多排鉆強抽，密集交叉鉆孔邊掘邊抽及設置金屬骨架施工方法和防突措施揭穿高突特厚松軟煤層。
  12. For the tectonic coal ， the properties of higher porosity and lower permeability make it capable of keeping higher gas pressure ； both of the “ isolating action ” and “ gas - cushion action ” cut down the resistance against outburst ； the specifity of high - defomed - extent makes desorption ， escape and flowing quickly become possible ； the existing of weak - seam or “ thoroughfare - seam ” create suitable conditions for the initial erupting and continued developing of coal and gas outburst. on the whole ， it is the synhesis action of all factors ， which leads to outbursts. the existing of tectonic coal with certain thickess is the essential condition of coal and gas outbursts ， but not the sufficient condition

    高空隙率、低透氣性使構造煤能夠保持較高的瓦斯壓力；破碎性、 「隔離」作用及「氣墊」作用，使構造煤抵禦外力作用的能力大大降低；構造煤變形幅度大的特性，為瓦斯的迅速解吸、放散和快速流動創造了條件；構造煤薄弱分層或「通道層」的存在，則為煤與瓦斯突出的初始激發和持續發展奠定了基礎；上述因素的共同作用，影響和制約了煤與瓦斯突出的強度和分佈.盡管如此，一定厚度的構造煤的存在只是發生煤與瓦斯突出的必要條件和有利條件，而非充分條件
  13. Abstract : with the aids of computer ' s hardware, executive mechanism of weld arc length automatic controller of all - position pipe welder and additional software, an automatic system for arc striking has been developed, in which touch - starting method using tiny current is introduced. utilizing this method, the ablation ratio of tungsten electrode and tungsten inclusion ratio of welded seam is far smaller than normal touch - starting method. and the successful ratio of arc striking is high

    文摘:用全位置自動焊管機弧長自動控制系統的計算機硬體和執行機構，僅增加部分程序，設計了採用小電流接觸引弧法的自動引弧系統，鎢極燒損和焊縫夾鎢遠小於普通的接觸引弧方式，引弧成功率很高。
  14. Investigation of the tunnel layout way at high gas seam group mining area

    高瓦斯煤層群采區巷道布置方式的探討
  15. Practice on high efficient mining technology in thin seam

    較薄煤層高效開采技術的實踐
  16. How to realize high yield and high efficience in thin coal seam face

    如何實現薄煤層工作面高產高效
  17. 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
  18. The dcep mig has the characteristic of deeper penetration which can reduce defective fusion and good arc stabilization. the dcen mig has the characteristic of shallow penetration of welding seam, and the welding wire has a high melting speed. so the variable polarity pulsed mig is a new technology for the welding of aluminium alloy sheet

    變極性脈沖mig焊是一種新的焊接工藝方法，其綜合了dcep脈沖mig焊熔深較大、可以減少焊縫的熔合不良、電弧穩定性好和dcenmig焊焊縫熔深淺、焊絲熔化速度較快的特點，減小了焊縫的熔深，增加了焊絲的熔化速度，是一種適合於薄板鋁合金焊接的新方法。
  19. 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
  20. Gas outburst prevention technology in high gassy gateway heading face of quot; three soft quot; instability coal seam

    不穩定煤層高突區域掘進工作面瓦斯綜合治理
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