difficult coal 中文意思是什麼

difficult coal 解釋
難洗煤
  • difficult : adj. 1. 困難的，（工作等）艱難的。2. 執拗的，頑固的。
  • coal : n 1 煤，煤塊，煤堆。2 〈pl 〉〈美國〉（一堆）燒紅的煤。3 〈常 pl 〉〈英國〉（幾塊）供燃燒的煤。4 ...
  1. It 's difficult to ascertain the coal deposits. .

    煤儲量很難探明。
  2. Because the kinds, structure, storage and stratification of coal are different, it is difficult to analyze the effect factor on coal cutting power. based on a lot tests, the change rule of cutting parameter with cutting power is discussed, it is an important basis for designing, researching and selecting mining equipment, prcessing and technical reform

    由於煤炭的種類、結構、賦存和層理的不同，給分析影響煤炭切削力因素帶來了困難，在大量實驗的基礎上，討論了切削力隨切削參數的變化規律，為設計、研究、選擇採掘設備、開采工藝、技術改造提供了重要依據。
  3. Abstract : because the kinds, structure, storage and stratification of coal are different, it is difficult to analyze the effect factor on coal cutting power. based on a lot tests, the change rule of cutting parameter with cutting power is discussed, it is an important basis for designing, researching and selecting mining equipment, prcessing and technical reform

    文摘:由於煤炭的種類、結構、賦存和層理的不同，給分析影響煤炭切削力因素帶來了困難，在大量實驗的基礎上，討論了切削力隨切削參數的變化規律，為設計、研究、選擇採掘設備、開采工藝、技術改造提供了重要依據。
  4. It is determined by the characteristics of chinese coal seams that they are difficult to exploit ; this paper analyzes three main stimulation technologies : hydraulic fracturing, displacement of multi - gas and oriented pinnate horizontal well - drilling, which can provide technical guidance for developing coal - bed gas more efficiently and reasonably

    此外還分析了目前國內外煤層氣增產的3項主要技術：水力壓裂改造技術、煤中多元氣體驅替技術和定向羽狀水平鉆井技術。
  5. Ethylene - propylene rubber insulated high - voltage shielded soft cable with cold - resistant sheath working condition for soft rubber mine cable is difficult, experiencing frequent curve smash of stone and coal pressure of different machine detonable gas, its structure has following features

    礦用橡軟電纜的工作條件十分苛刻，它在使用中要經受頻繁的彎曲，矸石和煤塊的沖砸，各種機械的刮碰和擠壓，以及礦井中有易爆的瓦斯氣體，因此礦用電纜的結構有如下特點：
  6. How to measure exactly the coal mass of pulverizer in fossil power plant ? it is one of primary causes that the efficiency of milling control is low and the automation is difficult to running. in this paper a method of solving uncertainty problem - evidential theory was studied principally from the view of the multiple sensor information fusion

    火電廠中鋼球磨煤機筒內存煤量的測量問題一直是制粉控制效率低和自動控制難以投入運行的主要原因之一，本文從多傳感器信息融合的角度出發，重點研究了一種解決不確定性問題的有力方法? ?證據理論方法。
  7. The coking wastewater is a kind of intractable wastewater from the coking products of coal, whose component of this waste water is complicated and difficult to treat

    摘要焦化廢水是煤制焦化產品回收過程中產生的廢水，其成分復雜多變，屬于難處理的工業廢水。
  8. Probing into the stoping face methane prevention and control in difficult - to - drain coal - beds

    難抽放煤層回採工作面瓦斯防治技術探討
  9. Study on mechanism of difficult caving of highly tough top coal

    高韌性頂煤難冒性機理研究
  10. 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。
  11. It is shown that small - curvature arch support is very superior to trapezoidal support in mechanical properties, and has higher bearing capacity and better self - stability, so that such problem as short - distance coal gateways and lower branch coal gateways can not be bolted and is difficult to support in high pressure can be solved effectively

    結果證明：小曲率拱型支架力學性能遠優于梯形支架，支撐能力大，自身穩定性良好，有效解決了近距離和下分層煤層巷道不可錨且在強壓下難支護的問題。
  12. Discussion on fcmc separating column to treat difficult floated coal

    型浮選柱處理難浮煤的探討
  13. The measurement and control of injection quantity becomes difficult because the process of coal powder injection for blast furnace is a transport by gas combined gas with solid

    由於高爐煤粉噴吹是氣固二相流的氣力輸送，噴吹量的檢測與控制變得很困難。
  14. Longwall and longhole blasting coal mining method for difficult mining seam

    難採煤層巷道長壁長孔爆破採煤方法簡介
  15. In accordance with the question of big workload of drawing and difficult found of gallery of faclity in cad of coal preparation plant, this paper analyses the characteristics of the shape sameness and size unlikeness

    就選煤廠計算機輔助設計中存在的繪圖工作量大、設備圖庫建立困難的問題，分析了某些形狀相同、大小不同的設備的特點。
  16. In winter the outside temperature is - 15 ~ - 30, the wet coal freezes seriously in transportation. the frozen coal thick is about 400mm, sometimes freezes to a whole one, the unloading work is extremely difficult, affects the turnover of coal train, possessing rail cars and the railway, makes the railway transport strength not be fully displayed. it has created national manpower, financial resource loss, but in domestic and foreign, the development of movable frozen coal unloader is the blank

    在冬季北方室外平均氣溫在- 15oc ~ - 30oc ，濕煤在外運的過程中凍結現象嚴重，凍層厚在400mm左右，有時整車凍實，作業十分困難，影響運煤列車的周轉，造成壓車，壓線現象，使鐵路運力得不到正常的發揮，造成了國家人力，財力的損失，而國內外對于移動式卸凍煤機械的研製也是空白，為此急需研製一種能夠卸凍煤的可移動式卸煤機。
  17. With the exception of biomass fired stokers, to obtain a permit for a new coal fired stoker today would be exceedingly difficult

    除了以植物材料與農業廢物為燃料的助燃機外，在今天要想獲得許可、添置新的燃煤助燃機會比登天還難。
  18. The miner is miserable ; the trade of mining is difficult ; the performance of coal is n ' t promising ; the coal city is n ' t stable, which embody the problem of coal industry development

    礦工真苦，礦山真難，礦業真不景氣、礦城真不穩定的「四礦」嚴峻局面，是近年來煤炭產業的真實寫照。
  19. Machinery and tools used in the chemical, coal, and petroleum industries that require high intergranular corrosion resistance, building materials, heat resistant parts and parts that are difficult to heat treat

    耐晶間腐蝕性要求高的化學、煤炭、石油行業的機械、建材、耐熱部件及熱處理困難的產品。
  20. Coal contains less energy per unit of weight than natural gas or oil it is difficult to transport, and it is associated with a host of environmental issues, among them acid rain

    煤的單位能量含量低於石油和天然氣，而且會導致包括酸雨在內的一系列環境問題。
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