pollution concentration 中文意思是什麼

pollution concentration 解釋
污染濃度
  • pollution : n. 1. 污染（作用）。2. 腐敗，墮落。
  • 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. 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
  2. The results show that the indoor air is unpolluted and the main contamination is particulates with diameter of 10 m or less, total volatile organic compounds and ozone ; the pollution mostly comes from personnel, merchandise and outdoor air ; the unacceptability ratio of the indoor air quality is 22. 64 %, so the indoor air is unacceptable ; indoor persons have caught sick building syndrome ( sbs ) ; long time and low concentration pollution is an important characteristic of indoor pollution ; and the satisfied degree of indoor persons on the temperature, relative humidify, illumination and vision is very high

    結果表明，商場室內處于未污染狀況，主要污染物是可吸入顆粒物、總揮發性有機化合物和臭氧；主要污染來源於顧客、商品和室外空氣；商場內人員對室內空氣的不可接受率為22 . 64 % ，室內空氣屬于不可接受；室內人員已有病態建築綜合癥發生；長時間低濃度污染，是室內污染的重要特徵；室內人員對商場的溫度、相對濕度和室內光照度、視覺環境等滿意程度很高。
  3. From this result it can be concluded that the est isoenzyme was very sensitivity for the toxication of hg24 and can be used as a bioindicator of the environmental pollution. the same experiment had been done twice in 2003. scetion : from october in 2002 to october in 2003, by using random amplified polymorphic dna ( rapd ), the effects on ovary ' s dna under different concentration of mercury in freshwater crab ( sinopotamon yangtsekiense ) were detected for the first time

    汞對長江華溪蟹卵巢總dna的影響汞對長江華溪蟹（ sinopot胭onyangtsekiense ）細胞及分子水平的影響以體外暴露的方法，對經汞體外暴露一周長江華溪蟹的卵巢總dna ，採用隨機引物擴增多態性dna （ rapd ）技術對13條隨機引物的擴增圖譜用nei共享度公式進行分析。
  4. Introduction to general ideas in air pollution control, air pollution effects, design of wall collection devices （ gravity settlers, centrifugal separators, electrostatic precipitators ）, design of dividing collection devices （ surface filters, depth filters, scrubbers for particulate control ）, design of controlling by concentration and recovery （ condensation, adsorption, absorption ）, design of controlling by oxidation （ combustion, biological oxidation, biofiltration ） and the choosing of a control technology

    本課程介紹空氣污染防制概念，空氣污染之影響，壁式集塵設備之設計（重力沉降室、離心分離器、靜電集塵器） ，分隔集塵設備之設計（表面過濾器、深層過濾器、洗滌器） ，以濃縮回收之控制設計（冷凝、吸附、吸收） ，以氧化之控制設計（燃燒、生物氧化、生物過濾） ，以及控制技術之選擇。
  5. The process is suitable for purifying low concentration foul gas and providing a good way to control odour pollution

    該工藝適用於低濃度的含硫惡臭污染治理，為低濃度惡臭污染的治理提供了一種優良的方法。
  6. The results show that, the more soil lead pollution concentration is high, the more heavy metal lead is absorbed by maize plant, and the more maize plant growth influenced is graveness

    結果表明：土壤重金屬鉛污染質量分數越高，玉米吸收重金屬鉛越多，對玉米的生長影響越大。
  7. These methods can effectively decrease the pollution concentration of air invironment, however, ultraviolet light must join the process, the purity effect is not good at being used indoors

    此方法雖然能有效降低環境中污染性氣體的濃度，但必須有紫外光參與，否則凈化效果不佳，應用於室內空氣凈化受到較大限制。
  8. 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。
  9. In this paper, river water quality prediction is integrated with water pollution control measures. two parameters, water environmental capacity and pollution index are selected for pollution control measures. the objective is achieved after the development of simulation model using one - dimensional advection dispersion equation. the model algorithm and computer program is an improvement over the existing water quality models, since the model solution involves four point implicit upwind schemes for water quality prediction and pollution control measures at each grid point. model simulation results the assessment of water environmental capacity that yield the acceptable and realistic pollutants concentration in order to maintain water quality objectives. the pollution and overall pollution index of the river is suggested for integrating number of contaminants variables into one index. study provides the mathematical and scientific procedure for water quality management. the new approach is helpful for the water pollution control and to study the impacts of waste effluents on the river system for strategic planning purposes

    本文將水質預測及水污染控制措施有機地結合，選取水環境容量和污染指數作為水污染控制的參數.這樣，一維對流-擴散水質方程的求解除就是實現本研究目的的關鍵.本研究採用的模型在現有的水質模型基礎上有所改進，因為其採用四點隱格式對水質進行預測，推求可接納污染物的環境容量值及為保證水質而限定的污染物濃度值，從而制定相應的水污染控制措施.為整體考慮各種污染物的情況，建議採用河流的污染指數進而推求綜合污染指數.總之，本研究為水質保護提供了科學的計算方法，該法對水污染控制及污水對河道水質的影響是實用有效的
  10. Abstract : in this paper, river water quality prediction is integrated with water pollution control measures. two parameters, water environmental capacity and pollution index are selected for pollution control measures. the objective is achieved after the development of simulation model using one - dimensional advection dispersion equation. the model algorithm and computer program is an improvement over the existing water quality models, since the model solution involves four point implicit upwind schemes for water quality prediction and pollution control measures at each grid point. model simulation results the assessment of water environmental capacity that yield the acceptable and realistic pollutants concentration in order to maintain water quality objectives. the pollution and overall pollution index of the river is suggested for integrating number of contaminants variables into one index. study provides the mathematical and scientific procedure for water quality management. the new approach is helpful for the water pollution control and to study the impacts of waste effluents on the river system for strategic planning purposes

    文摘:本文將水質預測及水污染控制措施有機地結合，選取水環境容量和污染指數作為水污染控制的參數.這樣，一維對流-擴散水質方程的求解除就是實現本研究目的的關鍵.本研究採用的模型在現有的水質模型基礎上有所改進，因為其採用四點隱格式對水質進行預測，推求可接納污染物的環境容量值及為保證水質而限定的污染物濃度值，從而制定相應的水污染控制措施.為整體考慮各種污染物的情況，建議採用河流的污染指數進而推求綜合污染指數.總之，本研究為水質保護提供了科學的計算方法，該法對水污染控制及污水對河道水質的影響是實用有效的
  11. 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。
  12. The study of cadmium concentration mechanisms under supergene weathering action can offer countermeasures in preventing cadmium pollution from the mining of phosphate rock

    研究福元素在表生風化作用下的活化遷移沉澱富集機理可以為防治磷礦山開采中可能產生的鎘污染提供對策。
  13. The results indicated that with the change of water and sand condition and the altitude of tongguan and the development of the industry and agriculture in recent decades, the water environment of wei river had changed largely, which were shown as follow : annual runoff and seasonal flood decreased sharply ; water stream of large discharge decreased and the range of runoff decreased greatly ; sediment load per year decreased generally, sediment concentration of water increased, and the sand silting up was serious ; water channel swung and shrank, and water regime deteriorated ; frequencies of big floods decreased obviously, and hyper concentrated flood increased obviously ; water levels of the same runoff rose universally, and the frequencies of the floods increased and aggravated ; water pollution was very serious

    結果表明，近期隨著水沙條件、潼關高程等的變化及工農業的發展，渭河的水環境發生了巨大變化，表現在年水量及汛期水量銳減；大流量級水流出現次數減少，水量減少幅度大；年輸沙量總體減少，河水含沙量增大，泥沙淤積嚴重；河道向擺動型發展，河道萎縮，河勢惡化；大洪水發生的次數顯著減少，高含沙小洪水明顯增多；同流量洪水位普遍抬高，洪災發生次數增加，洪災加重；水質污染極為嚴重。
  14. Soil nitrogen pool is the main body of terrestrial carbon pools, so it ' s change will possibly result in relatively great change of atmosphere n2o concentration, and, it ' s change will also affect global climate change. meanwhile, the nitrogen in the soil can also cause the water pollution through soil water infiltration and surface runoff

    作為陸地氮庫的主體，土壤氮庫的微小變化，可能導致大氣n _ 2o濃度發生較大的變化，以至影響全球氣候變化；同時土壤中的氮素也可以通過下滲和地表徑流等方式流入水體，導致水體污染。
  15. Then by using the excel software, we get the figures of the velocity profile and pollution concentration distribution of different sections, and get the ventilation efficencies of the three ventilation forms. as view from the efficiency of the draining pollution, a desired ventilation is regarded as the up - inlet and down - outlet on the same side after compairing the three ventilation efficiency. the trend of the velocity profile and the pollution concentration distribution both are basically identical with the practice, and the numerical results of the ventilation efficency accord with the ones studied by prof

    從排污效果的角度上來看，分析得出這幾種方式下較好的送排風方式是同側上送下排方式。從得到的流場、濃度場分佈的趨勢來看與實際大體一致，計算的通風效率與已經有的實驗值大體相吻合，說明本文所採用的數學模型合理，計算方法基本可靠。
  16. 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。
  17. ( 3 ) the software modflow is a authority software in the world edited by professors chunmiao zheng etc, this paper uses the software successfully to model the pollution area and pollution concentration of the element 90sr in fracture water in hae field and its chang

    軟體成功地運用到放射性廢物處置的環境評價領域。三維動態模擬鋸進入裂隙飽水帶后的污染范圍、污染濃度分佈及其隨時間的變化規律，確定了xr的污染區域。
  18. The artificial neural network is used to predict the observational data of the atmospheric pollution concentration and the test results

    摘要污染物濃度預測是環境保護的重要內容，將神經網路用於水中有機污染物濃度的預測並對效果進行檢驗。
  19. From august 2005 the epd required operators renewing their specified process licences for power plants to reduce their total emissions. previously, only the pollution concentration in emissions was controlled

    以往，環保署只是管制發電廠廢氣的污染物含量，但在2005年8月，我們要求電力公司減低總排放量，方會續發指明工序牌照。
  20. A better desired ventilation form is acquired by comparing the three efficiency values. on the basis of recently materials collected in the field at home and abroad, this paper adopts two - equation turbulence model by analysis and comparison, and sets up mathematical model to study three - dimentional indoor turbulent flow. control - volume method and power - law scheme is used to discrete these differential equations. according to semi - implicit method for pressure - linked equations ( simple algorithm ), author writes a general program in c language for simulation of the velocity profile, temperature and pollution concentration distributions of indoor airflow, and the writing, the debugging and the running of the program. all are completed in microsoft visual c + + 6. 0 environment

    在收集國內外在這一領域內的大量資料的基礎上，通過分析與比較，採用了k -雙方程模型來研究室內氣流的濃度分佈，建立了描寫穩態的三維紊流室內氣流濃度分佈的數學模型，採用控制容積法和冪函數分佈方案來離散微分方程組，按壓力藕合方程的半隱式法（ simple ）演算法，用c語言編寫了計算室內氣流流場和溫度場、濃度場的通用程序，並在microsoftvisualc + + 6 . 0環境下對程序進行編制、調試與運行，並對調試工作做了探討與分析。
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