natural seam 中文意思是什麼

natural seam 解釋
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  • natural : adj 1 自然界的；關于自然界的。2 天然的；未開墾的；野生的。3 固有的 生來的 天賦的（opp acquired）...
  • 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. Application of gaussian curvature method in forecasting natural fracture zones in coal seam

    運用高斯曲率法預測煤層天然裂隙發育區
  2. The way and principle of gaussian curvature method for forecasting natural fracture zones in coal seam are discussed

    摘要論述了高斯曲率法預測煤層天然裂隙發育區的基本原理和方法。
  3. It is concluded that the gaussian curvature method can reflect the shape variation of coal seam curvature, and the method is effective to forecast natural fracture zones in coal seam

    分析表明，高斯曲率法可相對真實地反映煤層曲面形態變化，用該方法預測煤層天然裂隙發育區是切實可行的。
  4. Based on corresponding relationship of gaussian curvature to macrofractures in coal seam and permeability, the classification criteria of gaussian curvature method for forecasting natural fracture zones is put forward

    在分析高斯曲率與試井滲透率、煤層宏觀裂隙的對應關系的基礎上，提出了高斯曲率法的裂隙發育區分類標準。
  5. According to the criteria, natural fracture zones of no. 3 coal seam are divided into four grades and then the permeability distribution of no. 3 coal seam is preestimated

    依據該標準將3號煤層天然裂隙劃分為4級發育區，進而預測出3號煤層滲透率的分佈概況。
  6. Petroleum and natural gas industries. non - destructive testing methods of steel tubers for pressure purposes. ultrasonic testing of the weld seam of elcctric resistance and induction welded steel tubes for the detection of longitudinal imperfections

    石油天然氣工業.承壓鋼管無損檢測方法.電阻焊和感應焊鋼管焊縫縱向缺欠的超聲波檢測
  7. Petroleum and natural gas industries. non - destructive testing methods of steel tubers for pressure purposes. radiographic testing of the weld seam of submerged arc - welded steel tubes for the detection of imperfections

    石油天然氣工業.承壓鋼管無損檢測方法.埋弧焊鋼管焊縫缺欠的射線檢測
  8. Petroleum and natural gas industries. non - destructive testing methods of steel tubers for pressure purposes. ultrasonic testing of the area adjacent to the weld seam of welded steel tubes for the detection of laminar imperfections

    石油天然氣工業.承壓鋼管無損檢測方法.焊接鋼管焊縫附近分層缺欠的超聲波檢測
  9. Petroleum and natural gas industries. non - destructive testing methods of steel tubers for pressure purposes. ultrasonic testing of the weld seam submerged arc - welded steel tubes for the detection of longitudinal and or transverse imperfections

    石油天然氣工業.承壓鋼管無損檢測方法.埋弧焊鋼管焊縫縱向和或橫向缺欠的超聲波檢測
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