sublevel 中文意思是什麼

sublevel 解釋
次層級
  1. Stability analysis and control principles of soft rock roadway bestrided over mining by isolated fully - mechanized mining face with sublevel caving

    綜放跨采軟巖巷道穩定性分析與控制原則
  2. Study on passing faultage troop in 2116 fully - mechanized coal winning with sublevel caving face

    2116綜放面過斷層群技術研究
  3. Field survey study of ground movement and deformation laws of fully - mechanized mining with sublevel caving

    綜放開采地表移動規律實測研究
  4. Field survey study of ground movement and deformation laws of fully mechanized mining with sublevel caving

    綜放開采條件下地基反力的變化規律
  5. Tons of sublevel ore, two miles below the martian surface

    在火星巖層下發現的巨量礦石。 。 。
  6. Technology of high efficient mining for fully mechanized sublevel caving working face to sideway pass through sunk column

    綜放工作面遇陷落柱高效開采技術
  7. Double unit coal mining technology for thin seam coal mining tace with road retained for next sublevel

    薄煤層沿空留巷對拉開采技術
  8. Technology of coal spontaneous combustion prevention in open gob of full - mechanized sublevel caving

    淺談龐莊礦區採煤塌陷地的綜合開發利用
  9. On the cover caving in the sublevel caving of slightly dipped thick orebody

    緩傾斜厚礦體無底柱分段崩落法放頂方式探討
  10. 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
  11. With the mining of no. 1 ore body which is solwly inclined, large and thick at the west flank of xinqiao pyrite mine as the example, analytic comparision is made between flat - back cut and fill stoping and sublevel open stoping with one - time delayed filling. the suggestion on the optimization of the mining and the discussion on appropraite mining method and the technical parameters of mining technology for slowly inclined large and thick ore body are also made

    以新橋硫鐵礦礦體西翼緩傾斜厚大礦體的開采為實例，對生產中應用的水平分層充填采礦法和分段空場嗣後一次充填采礦法進行分析比較，提出采礦方法的優化建議，探討緩傾斜厚大礦體合適的采礦方法和采礦工藝技術參數。
  12. Comprehensive controlling technology of fire fighting in special period of full - mechanized sublevel caving faces in not prone to spontaneous fire coal seam

    不易自燃煤層綜放工作面特殊時期防滅火綜合治理技術
  13. Mining technique of combined arrangement of coal seam with entry and inclined roadway in common sublevel

    煤層與共用區段平巷斜巷聯系布置開采技術應用
  14. Development of support technology beside roadway in goaf - side entry retaining for next sublevel

    沿空留巷巷旁支護技術的發展
  15. The practise of blast technique of sublevel drilling and stope mining

    分段鑿巖階段礦房法爆破工藝的實踐
  16. Research of large diameter long - hole sublevel room mining in zijinshan gold - copper mine

    紫金山金銅礦大直徑深孔階段礦房法的試驗
  17. The blast of sublevel caving together with the blast of undercutting, crater opening and slot cutting are brought about successfully at same time in the practice of sublevel drilling and stope mining with nonelectric blast ignition system, and the productivity of mining is increased

    在分段鑿巖階段礦房法回採實踐中，用非電導爆管雷管起爆系統成功地實現了階段落礦爆破與拉底、辟漏、切槽爆破一次同步進行，提高了生產效率。
  18. Study on ore loss and dilution in pillarless sublevel caving based on sls system

    系統的無底柱崩落法礦石損失貧化的研究
  19. An experimental study on high sublevel mining technology

    高分段采礦技術試驗研究
  20. With computer imitation and laboratory physical analog as the lead and on the basis of test ore blocks and industrial blownoff - ore rock tests, study on the enlarged - structure parameters of sublevel caving in meishan iron mine was carried out, which included single tests of drilling and blasting parameters ， transition sublevels and equipment complementation. the timely popularization of this enlarging structural parameter technique has greatly improved the performances of the sublevel caving mining and promoted the technological advance of underground mining

    梅山鐵礦加大無底柱分段崩落法采礦結構參數研究，採用計算機模擬、實驗室物理模擬為先導，試驗礦塊、工業放出體試驗為基礎，分別進行了采場鑿巖爆破參數、過渡分段、設備配套等單項試驗，並在全礦及時進行了推廣應用，極大地改善了礦石開采過程中的各項指標，促進了地下礦山開採的技術進步。
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