concentration of pollutant 中文意思是什麼

concentration of pollutant 解釋
污染物的濃度
  • 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。
  • pollutant : n. 污染物〈尤指放入水中和空氣中的有害的化學物質〉。
  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 change of indoor contaminating material concentration is dynamical simulated by adjusting the flow of fiowrator. at the same time, the path formulas of simulate pollutant source is modified by experiment, and providing theoretical base for dynamic simulation

    通過調節轉子流量計的流量來達到動態模擬室內污染物質濃度的變化情況，並根據對實驗結果的修正得出裝配式潔凈室室內模擬污染源的軌跡方程，為動態模擬提供了理論依據。
  3. The results show that the equilibrium adsorption from the sediment content to the phosphorous pollutant increases along with the increase of the initial concentration of the water phase phosphorus ; however, no significant effect from the sediment content is there on the parameters of the isothermal adsorption equation

    結果顯示，泥沙對含磷污染物的平衡吸附量大致隨水相磷初始濃度的增大而增大；而含沙量對磷吸附等溫式的參數沒有顯著影響。
  4. Taking the suspended sediment as the sand for the experiment and the normal nutritive matter - phosphorus in water as the contamination for simulation, the effect on the equilibrium adsorption of phosphorus from the initial concentration of the water phase phosphorous pollutant and the influence of sediment content on the isothermal adsorption of phosphorus are studied through the experiment

    摘要以懸移質泥沙為試驗用沙，以水體中常見的營養物質磷為模擬污染物，通過試驗研究了含磷污染物水相初始濃度對磷平衡吸附量的影響和含沙量對含磷污染物吸附等溫線的影響。
  5. 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。
  6. 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。
  7. 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。
  8. 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。
  9. Since the contamination of the original water, the pollutant in the water such as organic substance, ammonia nitrogen, algae toxin, finally nitrate, pelagic microbe and so on, whose concentration and species are becoming higher and more, deteriorate the quality of drinking water seriously

    由於水源受到污染，水中的有機物、氨氮和硝酸鹽氮、藻類及毒素、浮遊動物等污染物的含量和種類不斷增多，嚴重影響了飲用水水質。
  10. Thus it is very difficult to calculate the spill volume and water quality because they involve many processes such as rainfall, yield runoff of rainfall 、 flow concentration of surface runoff, ground pollutant build up 、 washout, the flow concentration of combined drainage system and cso

    其中，合流制排水系統的溢流水量、水質的確定涉及到降雨，地面產流、匯流，地表污染物的累積、沖刷，污水在管渠中的匯流以及溢流等多種因素，採用一般方法很難定量計算。
  11. Then author discusses the writing and debugging of the program. the ventilation of a typical chamber with a stable fixed pollutant emission is studied by founding different boundary conditions ( here, they are the both up inlet and outlet on opposite side, the up - inlet and down - outlet on opposite side and the up - inlet and down - outlet on the same side. ). and accordingly dividing different grids. using the program, the velocity values and the pollution concentration values of the chamber are worked out

    對所研究的具有單個固定污染源的典型房間的室內通風，通過對異側上送上排、上送下排以及同側上送下排等幾種方式下，建立相應的邊界條件並劃分網格，運用編制的程序對它們進行數值模擬，所得的計算結果再用excel軟體分別進行顯示與處理，得到相應條件下的流場、濃度場，而後再算出相應的通風效率。
  12. 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。
  13. 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
  14. The forecast program of long - term average concentration of air pollutant and its application

    大氣污染物長期平均濃度預測程序的編制及應用
  15. 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
  16. The printing and dyeing wastewater is difficulty to treat, because of its characteristics, such as large water volume, high concentration organic pollutant, deep chromaticity, high alkalinity, changeable water quality and complex ingredient

    摘要印染廢水具有水量大、有機污染物濃度高、色度深、堿性大、水質變化大、成分復雜等特點，屬較難處理的工業廢水之一。
  17. The particulate remains the key pollutant affecting the air quality in china. the annual concentration of the urban particulate in 64. 1 % of the cities exceeded grade ii

    顆粒物仍是影響我國城市空氣質量的主要污染物， 64 . 1 %的城市顆粒物年均濃度超過國家空氣質量二級標準。
  18. Electric field concentration of pollutant aerosols : association with cancer remains to be tested. professor denis l. henshaw, phd, h. h. wills physics laboratory, university of bristol, u. k

    摘要：電磁場聚集有害物質和塵埃可能是在電力線附近癌癥風險增加的原因。
  19. Landfill leachate is a sort of organic refractory effluent with complex pollutant constituents and high concentration of poison

    而垃圾滲濾液就是一種污染物種類繁多、水質構成復雜的高濃度毒性有機廢水。
  20. The concentration of pollutant is high and its discharging is concentrated during urbanization, which was pushed by industrialization in southern jiangsu

    在蘇南工業化推動下的城鎮化過程中，對水環境的影響具有污染物濃度大、排放集中的特點。
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