coal-dust 中文意思是什麼

coal-dust 解釋
煤塵
  • 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 ...
  • dust : n 1 塵，灰塵，塵土，塵埃。2 〈英國〉垃圾，廢品；灰燼。3 〈口語〉金粉；粉末，粉劑；花粉。4 〈詩〉...
  1. Analysis on the gas coal dust explosion accidence in mennanzhuang coal mine

    孟南莊煤礦瓦斯煤塵爆炸事故原因淺析
  2. The modern city consists of monstrous edifices and of dark narrow streets full of petrol fumes, coal dust, and toxic gases.

    現代城市是由大得怕人的大廈和充斥著難聞的汽油味，煤灰和有毒氣體的又陰暗又狹窄的街道所組成。
  3. He became ill after breathing coal dust for many years

    他因多年的吸進煤灰而生病了。
  4. Enclosed case decreases pollution by coal dust

    採用密閉殼體，粉塵污染小。
  5. Research and control of coal dust in fully mechanized face

    綜采工作面煤塵的研究與治理
  6. Coal dust weight control system of the rotary kiln

    回轉窯煤粉計量控制系統
  7. Study on dna damage induced by coal dust in vitro

    損傷作用的體外實驗
  8. His face and hands were covered with grime from the coal dust

    他的臉和雙手沾滿了一層煤灰。
  9. Performance optimization of coal dust extraction

    粉塵濃度可降低至
  10. Study of influence of coal dust on low - concentration gas explosion

    煤塵對低濃度瓦斯爆炸的影響研究
  11. Health standard for respirable coal dust in the air of workplace

    作業場所空氣中呼吸性煤塵衛生標準
  12. An introduction was made to the dry distillation process of coal, anti - metal penetration mechanism of coal dust and influences of various physical - chemical properties of coal dust on its anti - metal penetration ability, view points on coal dust choice and choice methods

    摘要介紹煤的干餾過程、煤粉在型砂中的防粘砂機理和煤粉的各項理化指標對其防粘砂能力的影響，以及選擇優質煤粉的觀點和方法。
  13. Coal dust explosion accidents and comprehensive judgement under coal mine

    煤塵爆炸事故及其綜合評判
  14. Review and prospect for study of gas and coal - dust explosion propagation

    瓦斯煤塵爆炸傳播研究綜述及展望
  15. This article aims at the boiler ' s problems in operation : 1 ) under nominal load, the smoke temperature at the outlet of hearth reaches 1200, far more exceeds 1050 the original designed temperature. this will always result in slag inside boiler and the temperature of overheater ' s pipe superheat, so that boiler cannot take nominal load and all these influence boiler ' s nomal operation heavily, 2 ) this article also studied the reason why the assistant oil becoming necessary when coal changes. during the nomal operation, many factors ( makeup of combustor and its disposal, smirch and encrust of water wall, excessive air coefficient, temperature of primary air, coal type and density of coal dust ) can deviate the designed working conditions, then affect the boiler ' s nomal operation

    本文針對該鍋爐在實際運行中存在的問題：在額定負荷下，爐膛出口超溫、低溫段過熱器前煙溫高達936 ，遠遠超過815的設計值；噴燃器四周水冷壁結焦嚴重，過熱器管壁溫度超標，無法帶上額定負荷；甚至有時因燃煤質量的變化，必須投油助燃的嚴重情況進行了分析研究。在實際生產過程中，燃燒器的結構、布置，水冷壁的粘污、結垢，過剩空氣系數、一次風溫、煤種及其濃度變化等許多因素都會偏離鍋爐的設計工況，從而影響爐內的傳熱和燃燒，造成爐膛出口超溫、水冷壁結渣等問題。
  16. Aiming at the existence of coal dust and gas in the coalmine environment and the special requirements of mine case explosion - proof surface process, the error conversion model, shape precision characteristics, transfer drawings, descriptive equation and error transfer structure chart in the production technological process of case accessories adopting the information flowchart of control theory are discussed, which simplify the traditional block diagram of technological process and represent the relationship of working procedure ( variable ) by information flowchart instead of miscellaneous block diagram

    針對煤礦井下煤塵和瓦斯存在的環境特性、煤礦井用箱體防爆面加工的特殊要求，採用控制理論的信息流圖，對工藝過程中傳統方塊圖進行簡化，使繁雜的方塊圖解採用信息流圖表示工藝過程的工序（變量）之間關系。
  17. In tunneling of the coal mine, in order to prevent from occurring the gas and coal - dust explosion accident, the article introduces the ventilation, the gas inspection, the safe explosion, the monitoring and controlling of the safety

    摘要為了防止在井下掘進中發生瓦斯、煤塵爆炸事故，本文詳細介紹了煤礦井下的掘進通風、瓦斯檢查、安全爆破和安全監控。
  18. Transmission characteristics of gas flame in pipelines with coal dust

    有沉積煤塵的管道內瓦斯火焰傳播特性
  19. The effective cost dust content of molding sand should be determined according to time factors such as the quality of the coal dust, casting size and thickness, pouring temperature, lacing sand or unit sand, and so on

    決定型砂中的有效煤粉含量應根據煤粉質量的優劣、鑄件大小和厚薄，澆注溫度、面砂或單一砂等因素。
  20. Research on emluator system of mine gas and coal dust explosion propagation

    瓦斯煤塵爆炸傳播數值模擬系統研究
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