mass concentration 中文意思是什麼

mass concentration 解釋
質量瘤
  • mass : n 彌撒；彌撒的儀式[禱告、音樂]；彌撒曲。 a high [solemn] Mass （有燒香、奏樂等的）大彌撒。 a low ...
  • 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。
  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. Methods for measurement of air pollution. determination of the mass concentration of sulphur dioxide in ambient air : tetrachloromercurate pararosaniline method

    空氣污染度的測量方法.第10部分:在環境空氣中二氧化硫質量濃度的測定:四氯汞化物副品紅法
  4. 4 ) the number and mass concentration distributions of the background atmospheric sand particles of ymchuan, bayanhot and tonggunur display a unimodal form, obeying a logarithmic normal distribution, greatly differing f

    黃沙的長距離輸送和小雨是泥雨形成的原因。雲物理和降水與來自沙塵粒子混合，尤其是小於zpm的粒子，導致了華北地區泥雨的發生。
  5. Characterization of air quality - stationary source emissions - method for the determination of the mass concentration of sulphur dioxide : hydrogen peroxide barium perchlorate thorin method

    空氣質量表徵方法.第4部分:固定排放源.第1節:二氧化硫質量濃度測定方法:過氧化氫高氯酸鋇釷試驗法
  6. In late 19th century after mass concentration of production and accumulation of the capital, a group of monopoly enterprises with powerful control to the market emerged in the industrial country, such as britain and unite states. the activities of these enterprises had drought much attention from the scholars. based on the studying of those activities, the theory of modern anti - monopoly was fundamentally formed

    19世紀後期，英、美等工業化國家出現通過大規模生產集中（資本積聚）等原始積累方式建立起來的壟斷企業，市場壟斷的危害性開始受到廣泛的重視，在對壟斷現象進行深入研究的基礎上，現代反壟斷理論得到了進一步的發展。
  7. Stationary source emissions. determination of the mass concentration of total gaseous organic carbon at low concentrations in flue gases. continuous flame ionisation detector method

    穩定源輻射.煙道低濃度氣體氣化有機碳濃縮總量的測定.連續火焰離子檢測器法
  8. Stationary source emissions - determination of the mass concentration of pcdds pcdfs and dioxin - like pcbs - part 1 : sampling of pcdds pcdfs

    固定源排放. pcdds pcdfs和類二氧芑pcbs質量濃度測定.第1部分: pcdds pcdfs的取樣
  9. Stationary source emissions - determination of the mass concentration of pcdds pcdfs and dioxin - like pcbs - part 2 : extraction and clean - up of pcdds pcdfs

    固定源排放. pcdds pcdfs和類二氧芑pcbs質量濃度測定.第2部分: pcdds pcdfs的萃取和凈化
  10. To investigate the space / time distributions and occurrence and evolution of such events, the diffusion pattern over deserts, turbulent transfer features in sandstorm weather, the particle size distribution, mass concentration and its distribution, optic properties, chemical composition and physical factors responsible for the initiation of raising sands, we made integrative observation and sounding of sandstorms deep in the large - scale desert area, including tengri, badanjilin and maowusu, with the items consisting of micrometeorological measurement, 3d wind observation, data from kb - 120 and anderson samplers of mass concentrations of sands with their spectrum, the distribution of aerodynamic particle sizes from the aps3310a, retrieval of aerosols " optic depth from sunphotometer data, assay of the chemical composition by means of neutron activiation analysis ( naa ) and integrated study of all related factors for causing sandstorm to occur, based on the observations of all kinds

    利用所取資料，系統分析了不同強度沙塵天氣條件下沙塵氣溶膠質量濃度和質量濃度譜、粒子譜分佈、光學厚度、化學組分等特徵；綜合分析了影響沙塵起動的諸物理因子在沙塵起動中的作用；用沙塵輸送模式對一次沙塵暴天氣造成的泥雨過程的形成機制進行了模擬。歷史氣象資料統計分析表明，沙塵暴有其高發期（ 4 、 5月）和高發時段（ 14 - 20時） ， 14時到20時之間發生的沙塵暴約占沙塵暴總次數的66 。揚沙和沙塵暴天氣條件下，湍流動量通量和湍流感熱通量都是重要的湍流交換，沙塵暴發生前近地層的超絕熱不穩定對沙塵暴天氣有加強作用。
  11. Compressed air - part 8 : test methods for solid particle content by mass concentration

    壓縮空氣.第8部分:用質量濃縮法測定固體顆粒含量的試驗方法
  12. Stationary source emissions - manual determination of mass concentration of particulate matter

    固定源排放.顆粒物質量濃度的人工測定
  13. Stationary source emissions - determination of the mass concentration of nitrogen oxides - naphthylethylenediamine photometric method

    固定源輻射.氮氧化合物質量濃度的測定.萘二胺光度測定法
  14. Furthermore, voltage, reaction temperature and amine mass concentration are important factor which effect electrolysis

    此外，電壓、反應溫度、胺的質量濃度等均是影響反應的重要因素。
  15. Finally, the dtbp additive is the best one with the best mass concentration 2 %

    本文最終選擇質量分數為2 %和二叔丁基過氧化物（ dtbp ）為最佳濃度和最優添加劑。
  16. Air quality ; determination of mass concentration of sulfur dioxide in ambient air ; thorin spectrophotometric method ; identical with iso 4221 : 1980

    空氣質量.環境空氣中二氧化硫質量濃度的測定.釷試劑
  17. Methods for measurement of air pollution. determination of mass concentration of sulphur dioxide in ambient air : thorin spectrophotometric method

    空氣污染度的測量方法.第7部分:環境空氣中二氧化硫質量濃度的測定:釷試劑分光光度法
  18. Nitrogen dioxide and sulfur dioxide and formaldehyde, three kinds of common contaminating gases, were selected as treatment subject. the influence factors on the rate of photocatalytic degradation such as intensity of uv irradiation, humidity and initial mass concentration were investigated in detail

    實驗選擇比較常見的甲醛、二氧化硫、二氧化氮三種污染氣體為處理對象，主要考察了光強、濕度、初始濃度對其光催化降解速率的影響情況。
  19. Haze - a mass concentration of surface imperfections, often giving a hazy appearance to the wafer

    霧度-晶圓片表面大量的缺陷，常常表現為晶圓片表面呈霧狀。
  20. Stationary source emissions - determination of the mass concentration of total gaseous organic carbon at high concentrations in flue gases from solvent using processes - continuous flame ionisation detector method

    固定源輻射.使用連續火焰離子化檢測器法測定在高濃縮時由溶劑產生的廢氣中總氣態有機碳的質量濃度
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