pollutant concentration 中文意思是什麼

pollutant concentration 解釋
污染物濃度
  • pollutant : n. 污染物〈尤指放入水中和空氣中的有害的化學物質〉。
  • 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. In the model the film thickness in the passage was obtained at first using two phase flow theory ; then, similar analysis solution of concentration distribution of the pollutant in liquid phase and biofilm was obtained through mass component equation of pollutant in gas - liquid phases combined with the biochemical kinetic equation of mass transfer in biofilm and dismission of oxygen limited ; at last, the distribution of pollutant along the filter height and the waste gas purification efficiency were obtained

    該模型首先運用兩相流理論獲得了通道內液膜厚度，然後通過污染物在氣相、液相的質量組分方程，結合生物膜內的傳質與不?慮氧限制的生化反應動力學方程，獲得了污染物在液相和生物膜中濃度分佈的近似分析解，最終得到污染物在氣相中沿塔高的濃度分佈及廢氣凈化效率。
  2. The research results show that compared with the uniform inlet velocity profile, the exponential inlet velocity profile has more advantages to get lower contaminant concentration, to prevent patient and operating apparatus in the operating area from infection by airborne disease germs and to reduce the airflow rate needed for pollutant concentration control

    研究表明，與通常採用的均勻風速的送風口相比，變化風速的送風口對于降低手術室工作細菌濃度，防止病人手術切口及手術器械等回風氣流攜帶的浮遊細菌再次感染，以及減少手術室的送風量等方面具有明顯的優點。
  3. Based on the hypothesis of " reference value " for each pollutant, the parameters in the formulae of the pollution harm rate are universal ones independent of the characters of the pollutants when the relative values of the pollutant concentration substitute their monitoring values

    摘要在選擇了各污染物的「參照值」情況下，用污染物的實測濃度相對值代替水質污染損害率公式中的濃度監測值，公式中的參數可認為與污染物的特性無關。
  4. Introduction to general ideas in air pollution, air pollution laws and regulation, meteorology for air pollution, air pollutant concentration models, gaussian plume model, the nature of particulate pollutants, control of particulate pollutants, the nature of gaseous pollutants, control of gaseous pollutants, the motor vehicle problem, air pollution and global climate

    本課程介紹空氣污染概述、空氣品質與相關法令、氣象學和空氣污染、空氣污染物擴散模式、高斯分佈模式、粒狀污染物之性質、粒狀污染物控制、氣狀污染物之性質、氣狀污染物控制、汽機車與空氣污染、空氣污染與全球氣候變遷。
  5. The result showed that the contamination situation in the lower zone of the office, i. e. the zone of occupants, was affected by of that of supply air. the supply air contamination should be kept to a low level in order to provide a good indoor air quality. however, the variation of the supply pollutant concentration has no influence on the indoor contaminant distribution of such system

    本文針對氣態污染物，研究了不同送風濃度對系統的影響，結果表明：置換通風房間的下部區域受送風污染物濃度的影響較大，人的工作區恰好處于該區，實踐中需要控制好送風濃度以保證人呼吸區的空氣品質；但是送風濃度的變化並不影響置換通風下污染物的分層分佈的特點。
  6. According to the model proposed, not only the distribution interval values of pollutant concentration under sudden pollutant discharged but also the respective corresponding faith degree can be obtained directly

    由該模型不僅能夠得到排污口下游各控制點污染物濃度可能值分佈形式，也可以得到各可能值區間相應的可信度分佈，從而為河流水質規劃管理和水污染控制提供豐富、有用的水質信息。
  7. This chapter describes methods of estimating airborne pollutant concentration distributions associated with various emission sources.

    本章論述幾種有關各種排放源的大氣污染物濃度分佈的估算方法。
  8. Airborne pollutant concentration

    氣載污染物濃度
  9. Non - point source pollutant concentration in typical towns of taihu upriver region

    太湖上游典型城鎮地表徑流面源污染特徵
  10. Prediction of pollutant concentration using artificial neural network and its verification

    水污染物濃度的神經網路預測模式及效果檢驗
  11. Objective to study tendency of air pollutant concentration in decorated office

    摘要目的了解裝修后辦公室室內污染物濃度的變化特徵。
  12. Experimental study on vehicle density and pollutant concentration on shanghai elevated road

    上海市高架道路車輛密度與污染物濃度的實測研究
  13. Pollutant concentration for the past 24 hours

    過去24小時污染物濃度
  14. The unsteady. flow theory is used for calculate air flow velocity and one - dimension unsteady convection - diffusion model is used for calculate pollutant concentration ( called unsteady theory model in general, utm ), and a new tunnel control method based on utm and neural network model is developed

    本文首次採用更符合實際情況的隧道氣流?維非恆定流理論和污染物濃度?維非恆定對流擴散模型（統稱非恆定流理論模型）進行隧道通風控制方法的研究，並提出了一套基於非恆定流理論和神經網路模型的新的隧道通風控制方法。
  15. Dust emission of technical equipment - evaluation of the emission of airborne hazardous substances - part 2 : pollutant concentration parameter ; stationary operated wood working machines

    技術設備粉塵排放.氣載有害物質排放量測定.第2部分
  16. Dust emission of technical equipment - evaluation of the emission of airborne hazardous substances - part 2 : determination of the pollutant concentration parameter, test bench method, handheld electrical wood working machines

    技術設備的粉塵排放.氣載危險物質的排放估算.第2部分
  17. Safety of machinery - evaluation of the emission of airborne hazardous substances - pollutant concentration parameter, test bench method

    機械的安全性.空氣中有害物質排放的評估.用試驗臺法測定污染物的濃縮參數
  18. Safety of machinery. evaluation of the emission of airborne hazardous substances. part 8 : pollutant concentration parameter, test bench method

    機器的安全性.空氣中危險物質排放的評定.第8部分:用試驗臺方法測定污染物濃度參數
  19. Safety of machinery - evaluation of the emission of airborne hazardous substances - part 8 : pollutant concentration parameter ; test bench method ; german version en 1093 - 8 : 1998

    機械的安全性.對漂浮在空氣中的有害物質排放的評估
  20. We present a methodology for computing daily pollutant concentration fields that reduces exposure uncertainty and bias by taking account of spatial variation in air quality

    我們呈現一個方法來計算每天污染物的濃度，以減少在考慮空氣品質的空間變異性時，對于暴露的不確定性及偏差。
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