concentration of dust 中文意思是什麼

concentration of dust 解釋
塵埃濃度
  • concentration : n. 1. 集中。2. 【化學】提濃，蒸濃，濃縮；濃度；稠密度；【礦物】汰選，選礦，富化。3. 集中注意，專心。
  • of : OF ＝Old French 古法語。
  • 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. Abstract : according to the observation of the number concentration spectrum and the mass concentration of atmospheric aerosol, tsp and its particle size distribution, micrometeorology, and the solar spectroscopic radiation, even the neutron activation treatment of sand dust samples in helan mountainous area, the formation law of sandstrom, dust and sand blowing weather and the characteristics of climatic variation in this area and the influence of helan mountain are counted and analysed

    文摘:利用賀蘭山地區沙塵暴歷史資料和綜合觀測資料，對大氣背景、浮塵、揚沙和沙塵暴發生期間的大氣氣溶膠數濃度譜、質量譜、大氣總懸浮顆粒（ tsp ）及粒徑分佈、微氣象、分光日射觀測以及沙塵樣品進行中子活化處理，分析了該地區浮塵、揚沙和沙塵暴形成規律，氣候變化特徵和賀蘭山的影響。
  2. According to the observation of the number concentration spectrum and the mass concentration of atmospheric aerosol, tsp and its particle size distribution, micrometeorology, and the solar spectroscopic radiation, even the neutron activation treatment of sand dust samples in helan mountainous area, the formation law of sandstrom, dust and sand blowing weather and the characteristics of climatic variation in this area and the influence of helan mountain are counted and analysed

    利用賀蘭山地區沙塵暴歷史資料和綜合觀測資料，對大氣背景、浮塵、揚沙和沙塵暴發生期間的大氣氣溶膠數濃度譜、質量譜、大氣總懸浮顆粒（ tsp ）及粒徑分佈、微氣象、分光日射觀測以及沙塵樣品進行中子活化處理，分析了該地區浮塵、揚沙和沙塵暴形成規律，氣候變化特徵和賀蘭山的影響。
  3. Research on ground concentration mode of dust particle diffusion under calm condition

    靜風條件下煙塵擴散地面濃度模式的研究
  4. Abstract : three - stage dust removal system of impinger, centrifugal dust collector, wet fibre - grid scrubber applying to dust collecting of driller in opencut mine is reported in this paper. the operational results show that this system has stable operation, higher dust removal efficiency, less drop pressure and dust concentration of outlet of the system meets emission standard

    文摘:介紹了用慣性除塵器、旋風除塵器、濕式纖維柵除塵器組成的三級串聯除塵系統進行露天礦的鉆機收塵，運行結果表明該系統運行可靠，阻力小，除塵效率高，系統出口含塵濃度達到排放標準。
  5. Determination for minimum explosive concentration of dust cloud

    粉塵雲爆炸下限濃度測定方法
  6. Dctermination for minimum explosive concentration of dust cloud

    粉塵雲爆炸下限濃度測定方法
  7. Three experimental models were constructed, on the basis of the distribution and diffuse of the main production dust source. the experiments of dust transport and concentration distribution were done for many times, then show that the air velocity and dust distribution are the key factors which control dust distribution of the area nearby dust source

    根據礦井主要生產性塵源的分佈及發塵特徵，構建了3種實驗模型進行粉塵運移和濃度分佈實驗.結果表明，風速和塵源是決定塵源附近區域粉塵分佈的關鍵因素.圖8 ，表2 ，參3
  8. Numerical simulation of distribution regularities of dust concentration during the ventilation process of coal drift driving with exhaust ventilation

    抽出式通風煤巷掘進過程中粉塵濃度分佈規律的數值模擬
  9. Area not classified as zone 20 in which combustible dust, as a cloud, is likely to occur during normal operation, in sufficient quantities to be capable of producing an explosive concentration of combustible dust in mixture with air

    在正常運行過程中，可能出現粉塵數量足以形成可燃性粉塵與空氣混合物但未劃入20區的場所。
  10. This zone can include, among others, areas in the immediate vicinity of powder filling or emtying points and areas where dustlayers occur and are likely in normal operation to give rise to an explosive concentration of combustible dust in mixture with air

    該區域包括，與充入或排放粉塵直接相鄰的場所、出現粉塵層和正常操作情況下可能產生可燃濃度的可燃性粉塵與空氣混合物的場所。
  11. Area in which combustible dust, as a cloud, is present continuously or frequently, during normal operation, in sufficient quantity to be capable of producing an explosive concentration of combustible dust in mixture with air and / or where layers of dust of uncontrollable and excessive thickness can be formed

    在正常運行過程中可燃性粉塵連續出現或經常出現，其數量足以形成可燃性粉塵與空氣混合物和或可能形成無法控制和極厚的粉塵層的場所及容器內部。
  12. In view of safety the elementary and industrial analyses of coal samples were conducted, a systematic experiment was performed to investigate the minimum ignition temperature ( mit ) of zhangcun and changcun meager - lean coal in a g - g furnace, and the effect of dust concentration, spray - air pressure and dust particle size on the mit was analyzed

    摘要從工業安全形度出發，對實驗煤樣進行了元素分析和工業分析，在高德伯兒格格瑞瓦爾德爐中對潞安常村、漳村貧瘦煤的最低著火溫度進行了比較全面、系統的實驗研究，探討了煤粉質量濃度、噴吹壓力以及粒度對最低著火點的影響。
  13. The results show that the tim increases with the decrease of dust concentration and the increase of spray - air pressure and dust particle size

    結果表明，最低著火溫度隨煤粉質量濃度的減小而升高，隨噴吹壓力和煤粉粒度的增大而升高。
  14. Methods for testing the performance of dust particle counter - particle concentration

    塵埃粒子計數器性能試驗方法顆粒數濃度
  15. Comparison of dust concentration before and after regulation in ceramic industry in long - wan district of wenzhou city

    溫州市龍灣區陶瓷行業整治前後粉塵濃度對比
  16. Stationary source emissions - determination of low range mass concentration of dust - automated measuring systems

    固定源排放.塵埃的低倍率質量濃度測定.自動測量系統
  17. Stationary source emissions - determination of low range mass concentration of dust - manual gravimetric method

    固定源排放.塵埃低倍率物質濃度測定.手工重量分析法
  18. Stationary source emissions - determination of low range mass concentration of dust - part 2 : automated measuring systems

    固定源輻射.粉塵的小范圍質量濃度的測定.第2部分:自動測量系統
  19. Stationary source emissions - determination of low range mass concentration of dust - part 1 : manual gravimetric method

    固定源輻射.粉塵的小范圍質量濃度的測定.第1部分:人工重量分析法
  20. Stationary source emissions - determination of low range mass concentration of dust - part 2 : automated measuring systems ; german version en 13284 - 2 : 2004

    固定源輻射.粉塵的小范圍質量濃度的測定.第2部分:自
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