low seam 中文意思是什麼

low seam 解釋
【礦物】薄煤層。

  • low : adj 1 低的；淺的，矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • 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. Before repairing, basing on the actual working condition, concerning the weldability, stress and deformation issues, the scheme of the cold welding technology whose essential being gtaw, low temperature preheating, postweld hammer the welded seam was established

    修理前，圍繞兼顧解決焊接性、應力和變形問題，結合實際施工條件制定了以手工鎢極氬弧焊、鎳基焊絲、焊前低溫預熱、焊后錘擊焊縫為要素的冷堆焊工藝。
  2. Synthetically analyzed the fracture, earthquake, coal ranks and their distribution, coal seam ' s buried depth and so on, the authors have realised that low - rank bituminites, early - middle jurassic in tianshan area, are formed by burial metamorphism, and it is widespread

    摘要通過對天山地區的斷裂構造、地震、地熱、煤級及其時空分佈、煤層埋深等因素的綜合分析，認為天山北緣及其鄰區早中侏羅世大范圍分佈的低級煙煤主要由深成變質作用形成，深成變質作用具普遍性。
  3. Advanced instrument and testing techniques including adopting mercury injection apparatus, specific surface analyses apparatus, porosity - permeability measurement apparatus, isothermal adsorption instrument and drill core flow experiment system, etc., are also adopted. on the basis of study on gas zoning, known cbm show and its component, generating mechanism of low coal rank cbm are discussed. the author pointed out that generated cbm should consist of primary biogenic methane gas in lignite stage, thermogenic methane gas in long - flame coal to gas / fat coal stage, and deuterogenic biogenic methane gas in coal seam imbedded stage

    在本區瓦斯分帶、已知煤層氣顯示及其組分研究基礎上，探討了低煤級煤層氣的生成機制，指出生成的煤層氣應包括褐煤階段的原生生物甲烷氣、長焰煤?氣肥煤階段的熱成因甲烷氣和煤層埋藏階段的次生生物甲烷氣三種成因甲烷氣體；進而論述了煤儲層含氣飽和度、臨界解吸壓力、臨儲壓力比、地解壓差等甲烷解吸特徵，實測與理論含氣量、煤層氣資源量與資源豐度等煤儲層含氣性特徵。
  4. The kind of welding equipment is suitable forwelding the qarts in appplications of heat exchanger in - out water pipe port of electical heater and hot pipe fittings simple operation low lost and good seam foring are the advan tages. it is an essential and special equipment in the profression of tube - making electrical and solar water heaters

    該系列焊接設備適用於太陽能熱水器端蓋及水箱內受到影響上的進出水管、熱管接頭、電加熱器接頭及搪瓷水箱進出水管的自動化焊接，焊縫盛開有美觀、效率高、成本上升低，是制桶業、太陽能熱水器、電熱水器等行業必不可少的專用設備。
  5. Vickers hardness testing of resistance spot, projection and seam welds low load and microhardness

    電阻點焊凸焊和滾焊的維氏硬度試驗
  6. Way of exhausting gas from low permeability thin seam

    低透氣性薄煤層瓦斯抽放方法
  7. The author puts forward using double pore model and two permeability model and triple medium models to represent its infiltrating fluid model and studies partly the infiltrating fluid. ( 2 ) various kind of test well curve form characteristic crevices - cave model on reservoir was studied. the test well curve of carbonate seam cave oil reservoir divides to 7 styles : homogeneity, double - pore, vertical - transmitting, compound, low - seepage, double - seepage and triple medium

    充分利用動態資料和靜態資料，結合塔河油田碳酸鹽巖儲層特徵，開展典型探井的試井分析研究，將碳酸鹽巖縫洞型油藏試井曲線劃分為7大類：均質儲層油藏、雙孔介質油藏（包括孔隙?裂縫介質油藏、裂縫?孔隙介質油藏） 、垂直導流型油藏、復合油藏、低滲型油藏、雙滲介質油藏和三重介質油藏。
  8. They are less capital scale, weak competence, single operational article, highly seam business structure, low efficiencies of the capital operation and no characteristic business, lack of professional and brand awareness

    資本運作效率差，無特色業務，專業人員缺乏，品牌意識不強。論文對證券公司轉變經營模式的內容進行了深入系統的研究。
  9. Practice of using deep - hole presplitting blasting technology to drainage methane from extremely - thick coal seam with low permeability

    深孔預裂爆破強化抽放低透氣性特厚煤層瓦斯的實踐
  10. In order to improve the accuracy and the real time performance of edge detection, a method need to be found to match the detection of low contrast blurred welding seam image

    為提高邊緣檢測的準確性和實時性，需要尋找一種適合於低對比度模糊焊縫圖象邊緣檢測的快速方法。
  11. Vickers hardness testing of resistance spot, projection and seam welds low load and microhardness iso 14271 : 2000 ; german version en iso 14271 : 2001

    電阻點焊凸焊和滾焊的維氏硬度試驗
  12. Flow enhancement technique for gas drainage in coal seam with low permeability

    低透氣性煤層瓦斯抽采增流技術
  13. A system for the weld power source was established with digital signal processor ( dsp ), and variable polarity power supply output, high - frequency pulse current, protection and process control were fulfilled with the software all, and modulate low frequency pulse current by means of amplitude modulation, through which it could also control the shape of weld seam like the low frequency pulse current welding

    在模擬控制器基礎上引入了dsp數字控制技術，用軟體編程實現了電源的變極性輸出、高頻脈沖電流的疊加及保護和電源的時序控制，使之能夠在大尺度上調制出低頻脈沖，控制焊縫成形。
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