coal fall 中文意思是什麼

coal fall 解釋
煤的崩落
  • 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 ...
  • fall : vi （fell; fallen ）1 落下；散落，（毛發等）脫落；降落；（水銀柱等）下降；（物價）下落，跌落；（...
  1. Analysis of geological cause of local roof - fall in coal face

    採煤工作面局部冒頂的地質原因分析
  2. If the coal mined from a newly - built coal mine is of high - sulfur or high - ash, supporting facilities for the dressing of coal by washing shall be installed to make the sulfur and ash in coal fall within the prescribed limits

    新建的所採煤炭屬于高硫份、高灰份的煤礦，必須建設配套的煤炭洗選設施，使煤炭中的含硫份、含灰份達到規定的標準。
  3. Study on influence factors of rib fall of coal wall in mining workface

    採煤工作面煤壁片幫影響因素研究
  4. Spraying urethane foam for blocking air leakage in the area of roadway roof fall in wangcun coal mine

    王村礦煤巷高冒區聚氨酯泡沫堵漏風技術
  5. Probing into gas control technique by high roof - fall roadway and highly - located bore - holes in working face of shangzhuang coal mine

    尚莊煤礦回採工作面頂板高冒巷和高位鉆孔治理瓦斯技術探討
  6. Probe of reducing top coal loss by using of cutting top coal first fall interval

    減少頂煤初垮步距降低煤損的探討
  7. And they are easy to fall into crisis of “ city decays as coal resource drains ”. therefore this paper has done the research on the industry structure adjusting in the transformation from the resource - based cities to eco - cities by multi - disciplinary theories and research methodologies such as comparison qualitative and quantitative analyses. this paper reviews and summarizes the theories of resource - based cities ’ transformation, eco - cities and industry structure adjusting, defines the concept of resource - based cities ; selects 23 prefecture - level cities as research objects and analyses their industry structure condition from the gdp structure and employment structure ; puts forward that transform to the eco - cities is the only way now ; analyses reasons which influence the industry structure adjusting, and builds the grey dynamic linear programming model ; does the programming for maanshan ’ s coming 5 years target of industry structure, and puts forward some suggestions from angles of theory and practice

    在對資源型城市轉型、生態城市和產業結構調整的國內外研究現狀進行綜述的基礎上界定本文的研究對象並介紹生態城市和產業結構調整的相關理論;選取23個地級以上中等資源型城市作為研究對象，從國內生產總值結構和就業結構兩個角度對資源型城市的產業結構現狀進行深入的剖析，並提出向生態城市轉型是資源型城市發展的必由之路;分析影響產業結構調整的各種動因，指出資源型城市向生態城市轉型中產業結構調整需遵循的原則並構建用於資源型城市產業結構調整的灰色動態線性規劃模型;以馬鞍山市為例，對其產業結構調整做出實證研究，分析其產業結構現狀並對其產業結構調整目標進行規劃，從思維、理論和實踐三個角度對其向生態城市轉型期間的產業結構調整給出相應的建議和對策。
  8. When winter temperatures fall to minus 20 f ( minus 29 c ), poor families regularly scale the steep and slippery 500 - foot - high ( 150 meters ) waste pile to scavenge for pieces of coal to heat their homes

    當冬天氣溫降到攝氏零下29度，貧困戶常爬上峭而滑的150米高的煤渣堆，尋找未燃盡的煤塊來為家中加熱所用。
  9. Prevention and handling of tunnel fall of ground and coal spontaneous ignition

    巷道冒頂煤炭自燃發火的預防和處理
  10. Research of passing fault with comparatively high fall in fully mechanized top - coal caving face

    綜放面過較大落差斷層的實踐與研究
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