caving the roof 中文意思是什麼

caving the roof 解釋
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  • caving : 岸崩
  • the : 〈代表用法〉…那樣的東西，…那種東西。1 〈用單數普通名詞代表它的一類時（所謂代表的單數）〉 （a） 〈...
  • 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. With the roof caving in, there were an increasing number of desertions.

    由於大勢已去，逃兵的人數日益增多。
  2. In 1981, as the roof was caving in, it seemed to our company a merger might be the only way out.

    1981年，我們的情況岌岌可危，同另一家公司合併似乎是我們公司唯一的出路。
  3. The design of light - duty roof caving coal hydraulic support equipped with flat tramcar

    輕型放頂煤液壓支架配套平板車設計
  4. Analysis of the way for the main roof caving relating to the staggered sublevel caving method

    錯層位放頂煤方法老頂垮落方式分析
  5. To solve the problem of the relative difficulty in roof caving in highly tough top - coal, it is very important to study the mechanism of difficult caving of highly tough top coal

    摘要為了解決高韌性頂煤的冒放性較差的問題，對其難冒性機理進行研究是非常重要的。
  6. The preventive technology of section and wall caving in short distance broken roof comprehensive working face

    近距離破碎頂板綜采面片幫冒頂治理技術
  7. Analysis of the rational mining process with caving method for the extremely unstable coal seams soft seam, soft roof and soft floor

    三軟極不穩定煤層合理采放煤工藝分析
  8. The practice of choosing and matching the fully mechanized top caving mining equipment them under soft roof, soft coal and soft floor

    三軟不穩定厚煤層綜放設備選型配套經驗
  9. Research on the relationship between sublevel caving support load and roof structure

    綜采放頂煤支架受力與頂板結構的關系探討
  10. Influence of support construction on tip - to - face roof stability has been studied by the use of theoretical analysis and numerical simulation methods under different top coal conditions in fully mechanized top coal caving face

    摘要採用理論分析、數值模擬等方法研究了在綜放開采中不同頂煤條件下支架架型對端面頂板穩定性的影響。
  11. The analysis on roof control of working face of medium - thickness coal seam comprehensive mechanized top coal caving method

    中厚煤層綜采放頂煤工作面頂板管理
  12. In order to study the basic roof ' s destruction movement that affects working face in horizontal section top coal caving in mining steep seams, this paper analyses tension of roof using elastic and thin board theory and obtains criterion of roof destruction based on long and narrow thin board

    摘要為研究急斜煤層水平分段放頂煤開采過程中基本頂破壞活動對工作面的影響，根據急斜煤層基本頂具有傾斜狹長板的特點，運用彈性薄板理論對基本頂巖層進行了拉應力分析，得出了頂板破斷的判別準則，建立了基本頂初次破斷后形成的「鉸接結構」的力學模型。
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